Home / 5,615.20-8,417.10-3,642.08

Finding the Fourth Proportional to 5,615.20, 8,417.10 and 3,642.08

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Solution

The fourth proportional to 5,615.20, 8,417.10 and 3,642.08 is: 5,459.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,615.20 : 8,417.10 = 3,642.08 : x
  2. Step 2: Convert to fraction form
    5,615.20/8,417.10 = 3,642.08/x
  3. Step 3: Cross multiply
    5,615.20x = 8,417.10 × 3,642.08
  4. Step 4: Simplify right side
    5,615.20x = 30,655,729.86
  5. Step 5: Solve for x
    x = 30,655,729.86/5,615.20
  6. Step 6: Final answer
    x = 5,459.42

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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.