Home / 3,717.60-5,575.50-1,251.78

Finding the Fourth Proportional to 3,717.60, 5,575.50 and 1,251.78

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Solution

The fourth proportional to 3,717.60, 5,575.50 and 1,251.78 is: 1,877.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717.60 : 5,575.50 = 1,251.78 : x
  2. Step 2: Convert to fraction form
    3,717.60/5,575.50 = 1,251.78/x
  3. Step 3: Cross multiply
    3,717.60x = 5,575.50 × 1,251.78
  4. Step 4: Simplify right side
    3,717.60x = 6,979,299.39
  5. Step 5: Solve for x
    x = 6,979,299.39/3,717.60
  6. Step 6: Final answer
    x = 1,877.37

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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.