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Finding the Fourth Proportional to 5,372.47, 7,414.78 and 2,982.99

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Solution

The fourth proportional to 5,372.47, 7,414.78 and 2,982.99 is: 4,116.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,372.47 : 7,414.78 = 2,982.99 : x
  2. Step 2: Convert to fraction form
    5,372.47/7,414.78 = 2,982.99/x
  3. Step 3: Cross multiply
    5,372.47x = 7,414.78 × 2,982.99
  4. Step 4: Simplify right side
    5,372.47x = 22,118,214.59
  5. Step 5: Solve for x
    x = 22,118,214.59/5,372.47
  6. Step 6: Final answer
    x = 4,116.95

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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.