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Finding the Fourth Proportional to 3,345.92, 5,018.76 and 1,591.77

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Solution

The fourth proportional to 3,345.92, 5,018.76 and 1,591.77 is: 2,387.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,345.92 : 5,018.76 = 1,591.77 : x
  2. Step 2: Convert to fraction form
    3,345.92/5,018.76 = 1,591.77/x
  3. Step 3: Cross multiply
    3,345.92x = 5,018.76 × 1,591.77
  4. Step 4: Simplify right side
    3,345.92x = 7,988,711.61
  5. Step 5: Solve for x
    x = 7,988,711.61/3,345.92
  6. Step 6: Final answer
    x = 2,387.60

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1.5x scale

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.