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Find the Third Proportion to the Following : - ICSE Class 10 - Mathematics

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Question

Find the third proportion to the following :

3 and 15 

Solution

Let x be the third proportion 

3 : 15 :: 15 : x 

⇒ 3 × x- 15 x 15 

⇒  3 x = 225 

⇒ x = 75

The third proportion is 75. 

  Is there an error in this question or solution?

APPEARS IN

 Frank Solution for Frank Class 10 Mathematics Part 2 (2016 to Current)
Chapter 9: Ratio and Proportion
Exercise 9.2 | Q: 3.1

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Solution Find the Third Proportion to the Following : Concept: Proportions.
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