Home / 7,127.52-10,691.20-3,229.28

Finding the Fourth Proportional to 7,127.52, 10,691.20 and 3,229.28

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Solution

The fourth proportional to 7,127.52, 10,691.20 and 3,229.28 is: 4,843.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.52 : 10,691.20 = 3,229.28 : x
  2. Step 2: Convert to fraction form
    7,127.52/10,691.20 = 3,229.28/x
  3. Step 3: Cross multiply
    7,127.52x = 10,691.20 × 3,229.28
  4. Step 4: Simplify right side
    7,127.52x = 34,524,878.34
  5. Step 5: Solve for x
    x = 34,524,878.34/7,127.52
  6. Step 6: Final answer
    x = 4,843.88

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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.