Home / 5,123.20-7,691.71-3,277.92

Finding the Fourth Proportional to 5,123.20, 7,691.71 and 3,277.92

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Solution

The fourth proportional to 5,123.20, 7,691.71 and 3,277.92 is: 4,921.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,123.20 : 7,691.71 = 3,277.92 : x
  2. Step 2: Convert to fraction form
    5,123.20/7,691.71 = 3,277.92/x
  3. Step 3: Cross multiply
    5,123.20x = 7,691.71 × 3,277.92
  4. Step 4: Simplify right side
    5,123.20x = 25,212,793.57
  5. Step 5: Solve for x
    x = 25,212,793.57/5,123.20
  6. Step 6: Final answer
    x = 4,921.30

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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.