# 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 