Home / 4,869.47-7,304.20-3,139.31

Finding the Fourth Proportional to 4,869.47, 7,304.20 and 3,139.31

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Solution

The fourth proportional to 4,869.47, 7,304.20 and 3,139.31 is: 4,708.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.47 : 7,304.20 = 3,139.31 : x
  2. Step 2: Convert to fraction form
    4,869.47/7,304.20 = 3,139.31/x
  3. Step 3: Cross multiply
    4,869.47x = 7,304.20 × 3,139.31
  4. Step 4: Simplify right side
    4,869.47x = 22,930,103.73
  5. Step 5: Solve for x
    x = 22,930,103.73/4,869.47
  6. Step 6: Final answer
    x = 4,708.96

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Similar ratio
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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.