IXL - Partial sums of geometric series (Algebra 2 practice)

Find the third partial sum of the series.

125

625

243

3,125

729

15,625

Write your answer as an integer or a fraction in simplest form.

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Learn with an example

Find the fourth partial sum of the series.

Write your answer as an integer or a fraction in simplest form.

A sequence is an ordered list of numbers. This list can have a finite number of terms or infinitely many terms.

A series is the sum of a sequence of numbers.

The

partial sum

(

)

of a series is the sum of its first

terms.

Look at the series.

The fourth partial sum,

is the sum of the first four terms.

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