Common Ratio: Definition & Concept


Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

What is the common ratio in the following sequence?

{1, 5, 25, 125}

Create Your Account To Take This Quiz

As a member, you'll also get unlimited access to over 79,000 lessons in math, English, science, history, and more. Plus, get practice tests, quizzes, and personalized coaching to help you succeed.

Try it risk-free
Try it risk-free for 30 days. Cancel anytime
Already registered? Log in here for access


What is the common ratio in the following sequence?

{12, 6, 3, 1.5)


What is the common ratio in the following sequence?

{6, -24, 96, -384}

Create your account to access this entire worksheet
A Premium account gives you access to all lesson, practice exams, quizzes & worksheets
Access to all video lessons
Quizzes, practice exams & worksheets
Certificate of Completion
Access to instructors
Create an account to get started Create Account

About This Quiz & Worksheet

Finding the common ratio in a sequence of numbers is easy after you have reviewed this quiz and accompanying worksheet. The practice questions let you calculate the common ratio in various geometric sequences.

Quiz & Worksheet Goals

Through this assessment, you will practice:

  • Calculating the common ratio
  • Determining if there is a common ratio
  • Defining a geometric sequence

Skills Practiced

This assessment lets you practice the following skills:

  • Making connections - use understanding of the concept of a geometric sequence
  • Problem solving - use acquired knowledge to solve common ratio practice problems
  • Knowledge application - use your knowledge to answer questions about sequences in general

Additional Learning

Practice your common ratio calculating skills by reviewing the lesson called Common Ratio: Definition & Concept. This lesson will cover:

  • Understanding sequences
  • Defining geometric sequences
  • Exploring the concept of the common ratio
  • Identifying the common ratio's formula
  • Determining the common ratio