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Step-3

Title: Ratio & Proportion

Grade: 8-a Lesson: S2-L8

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Step	Type	Explanation	Answer
1	Problem	Find the fourth proportion to 4 , 6 and 8.
2	Step	Let us take the third proportion is	\$x\$
3	Step	We can write the above numbers in the proportional form (a : b :: c : d)	\$4 : 6 :: 8 : x \$
4	Hint	\$a/b :: c/d\$
5	Step	Here a= 4 , b = 6 ,c = 8 & d = x
6	Step	Let us find the x value.	x = \$ (6 \times 8)/4\$ x = \$12\$
7		Answer	D

Step

Type

Explanation

Answer

Problem

Find the fourth proportion to 4 , 6 and 8.

Step

Let us take the third proportion is

\$x\$

Step

We can write the above numbers in the proportional form
(a : b :: c : d)

\$4 : 6 :: 8 : x \$

Hint

\$a/b :: c/d\$

Step

Here a= 4 , b = 6 ,c = 8 & d = x

Step

Let us find the x value.

x = \$ (6 \times 8)/4\$
x = \$12\$

Answer