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Common Ratio Calculator

Formula

The formula to calculate the common ratio (cr) is:

$cr = \frac{a(n+1)}{a(n)}$

Where:

cr is the common ratio
a(n+1) is the number following a(n)
a(n) is an arbitrary number in a sequence

What is the Common Ratio?

The common ratio is a measure used in geometric sequences to describe the ratio between consecutive terms. It is calculated by dividing a term in the sequence by the previous term. This ratio remains constant for a given geometric sequence.

Example Calculation

Let's assume the following values:

a(n): 5
a(n+1): 15

Step 1: Calculate the common ratio (cr):

$cr = \frac{15}{5} = 3$

Therefore, the common ratio (cr) is 3.