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Student Name:
Lesson Number: 22
4th Proportion
Directions:
Complete the following constructions. Leave all construction arcs on your paper.
a
Math Assignment
Level: 1007
b
1 Given a, b, and c, the length of three segments. Find the fourth proportional.
Find the fourth proprtional to r, s, and t.

Student Name Lesson Number 22 4th Proportion Directions Complete the following constructions Leave all construction arcs on your paper a Math Assignment Level 1 class=

Respuesta :

MrRoyal

The fourth proportionals are bc/a and st/r

How to determine the fourth proportional?

Segments a, b and c

Let the fourth segment be x.

So, we have the following equivalent ratio

a : b = c : x

Express as fraction

a/b = c/x

Make x the subject

x = bc/a

Segments r, s and t

Let the fourth segment be x.

So, we have the following equivalent ratio

r : s = t : x

Express as fraction

r/s = t/x

Make x the subject

x = st/r

Hence, the fourth proportionals are bc/a and st/r

Read more about proportions at:

https://brainly.com/question/1781657

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