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Finding the Fourth Proportional to 7,358.78, 10,154.90 and 4,001.52

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Solution

The fourth proportional to 7,358.78, 10,154.90 and 4,001.52 is: 5,521.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,358.78 : 10,154.90 = 4,001.52 : x
  2. Step 2: Convert to fraction form
    7,358.78/10,154.90 = 4,001.52/x
  3. Step 3: Cross multiply
    7,358.78x = 10,154.90 × 4,001.52
  4. Step 4: Simplify right side
    7,358.78x = 40,635,035.45
  5. Step 5: Solve for x
    x = 40,635,035.45/7,358.78
  6. Step 6: Final answer
    x = 5,521.98

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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.