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Finding the Fourth Proportional to 3,687.73, 5,095.54 and 2,947.79

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Solution

The fourth proportional to 3,687.73, 5,095.54 and 2,947.79 is: 4,073.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.73 : 5,095.54 = 2,947.79 : x
  2. Step 2: Convert to fraction form
    3,687.73/5,095.54 = 2,947.79/x
  3. Step 3: Cross multiply
    3,687.73x = 5,095.54 × 2,947.79
  4. Step 4: Simplify right side
    3,687.73x = 15,020,581.86
  5. Step 5: Solve for x
    x = 15,020,581.86/3,687.73
  6. Step 6: Final answer
    x = 4,073.12

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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.