Home / 3,781.60-5,672.41-1,149.13

Finding the Fourth Proportional to 3,781.60, 5,672.41 and 1,149.13

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Solution

The fourth proportional to 3,781.60, 5,672.41 and 1,149.13 is: 1,723.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.60 : 5,672.41 = 1,149.13 : x
  2. Step 2: Convert to fraction form
    3,781.60/5,672.41 = 1,149.13/x
  3. Step 3: Cross multiply
    3,781.60x = 5,672.41 × 1,149.13
  4. Step 4: Simplify right side
    3,781.60x = 6,518,336.50
  5. Step 5: Solve for x
    x = 6,518,336.50/3,781.60
  6. Step 6: Final answer
    x = 1,723.70

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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.