Find the value of a, if 3, 9 and a are in continuous proportion.

Given :

3,9 and a are in Continued Proportion.

To do :

We have to find the value of a.

Solution :

3,9 and a are in Continued Proportion.

Therefore,

$\frac{3}{9} = \frac{9}{a}$

$3\times a = 9 \times 9$

$3a = 81$

$a = \frac{81}{3}$

$a = 27$.

The value of a is 27.

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Updated on: 10-Oct-2022

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