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Finding the Fourth Proportional to 3,679.73, 5,078.03 and 2,001.13

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Solution

The fourth proportional to 3,679.73, 5,078.03 and 2,001.13 is: 2,761.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.73 : 5,078.03 = 2,001.13 : x
  2. Step 2: Convert to fraction form
    3,679.73/5,078.03 = 2,001.13/x
  3. Step 3: Cross multiply
    3,679.73x = 5,078.03 × 2,001.13
  4. Step 4: Simplify right side
    3,679.73x = 10,161,798.17
  5. Step 5: Solve for x
    x = 10,161,798.17/3,679.73
  6. Step 6: Final answer
    x = 2,761.56

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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.