# How to Calculate Arithmetic Progression?

Short tutorial on how to calculate arithmetic progression(A.P) explained with neat formula and example.

## Arithmetic Progression Formula and Example

**Arithmetic progression (AP)** is the sequence of numbers in which the difference of two consecutive numbers is a constant. For instance, the sequence 2, 4, 6, 8, 10, 12... is an arithmetic progression with common difference 2. Here is a tutorial which helps you to learn **how to calculate Arithmetic progression. **

Here we provide you with the arithmetic progression formula and example.

**Formula**

Arithmetic Progression = a + (n-1)* d

Where,

a - the first term in the series

n - number of terms in the series

d - Common difference

**Arithmetic Progression Problem With Solution**

Step 1: Consider the sequence of numbers

2, 5, 8, 11, 14, 17, 20, 23, 26

Where,

a = 2 (first term in the series)

n = 9 (number of terms in the series)

d = 3 (Common difference)

Calculate Arithmetic Progression

**Step 2:** Substitute the values in formula.

Arithmetic Progression = a + (n-1)* d

= 2 + (9 - 1) * 3

= 2 + 8 * 3

= 2 + 24

Arithmetic Progression = 26

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