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Finding the Fourth Proportional to 2,757.92, 3,805.80 and 1,562.87

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Solution

The fourth proportional to 2,757.92, 3,805.80 and 1,562.87 is: 2,156.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.92 : 3,805.80 = 1,562.87 : x
  2. Step 2: Convert to fraction form
    2,757.92/3,805.80 = 1,562.87/x
  3. Step 3: Cross multiply
    2,757.92x = 3,805.80 × 1,562.87
  4. Step 4: Simplify right side
    2,757.92x = 5,947,951.62
  5. Step 5: Solve for x
    x = 5,947,951.62/2,757.92
  6. Step 6: Final answer
    x = 2,156.68

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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.