Home / 1,612.32-2,418-572.13

Finding the Fourth Proportional to 1,612.32, 2,418 and 572.13

Calculator

Solution

The fourth proportional to 1,612.32, 2,418 and 572.13 is: 858.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.32 : 2,418 = 572.13 : x
  2. Step 2: Convert to fraction form
    1,612.32/2,418 = 572.13/x
  3. Step 3: Cross multiply
    1,612.32x = 2,418 × 572.13
  4. Step 4: Simplify right side
    1,612.32x = 1,383,410.34
  5. Step 5: Solve for x
    x = 1,383,410.34/1,612.32
  6. Step 6: Final answer
    x = 858.02

Related Problems

Find fourth proportional to 806.16, 1,209 and 286.07
Half scale
Find fourth proportional to 3,224.64, 4,836 and 1,144.26
Double scale
Find fourth proportional to 1,613.32, 2,419.50 and 573.13
Similar ratio
Find fourth proportional to 2,418.48, 3,627 and 858.20
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.