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Finding the Fourth Proportional to 3,449.87, 4,760.85 and 1,877.96

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Solution

The fourth proportional to 3,449.87, 4,760.85 and 1,877.96 is: 2,591.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,449.87 : 4,760.85 = 1,877.96 : x
  2. Step 2: Convert to fraction form
    3,449.87/4,760.85 = 1,877.96/x
  3. Step 3: Cross multiply
    3,449.87x = 4,760.85 × 1,877.96
  4. Step 4: Simplify right side
    3,449.87x = 8,940,685.87
  5. Step 5: Solve for x
    x = 8,940,685.87/3,449.87
  6. Step 6: Final answer
    x = 2,591.60

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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.