Home / 7,217.92-9,959.52-4,073.20

Finding the Fourth Proportional to 7,217.92, 9,959.52 and 4,073.20

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Solution

The fourth proportional to 7,217.92, 9,959.52 and 4,073.20 is: 5,620.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.92 : 9,959.52 = 4,073.20 : x
  2. Step 2: Convert to fraction form
    7,217.92/9,959.52 = 4,073.20/x
  3. Step 3: Cross multiply
    7,217.92x = 9,959.52 × 4,073.20
  4. Step 4: Simplify right side
    7,217.92x = 40,567,116.86
  5. Step 5: Solve for x
    x = 40,567,116.86/7,217.92
  6. Step 6: Final answer
    x = 5,620.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.