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Finding the Fourth Proportional to 3,333.73, 5,000.60 and 1,387.30

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Solution

The fourth proportional to 3,333.73, 5,000.60 and 1,387.30 is: 2,080.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,333.73 : 5,000.60 = 1,387.30 : x
  2. Step 2: Convert to fraction form
    3,333.73/5,000.60 = 1,387.30/x
  3. Step 3: Cross multiply
    3,333.73x = 5,000.60 × 1,387.30
  4. Step 4: Simplify right side
    3,333.73x = 6,937,332.38
  5. Step 5: Solve for x
    x = 6,937,332.38/3,333.73
  6. Step 6: Final answer
    x = 2,080.95

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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.