Home / 3,487.89-5,229.24-1,819.71

Finding the Fourth Proportional to 3,487.89, 5,229.24 and 1,819.71

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Solution

The fourth proportional to 3,487.89, 5,229.24 and 1,819.71 is: 2,728.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.89 : 5,229.24 = 1,819.71 : x
  2. Step 2: Convert to fraction form
    3,487.89/5,229.24 = 1,819.71/x
  3. Step 3: Cross multiply
    3,487.89x = 5,229.24 × 1,819.71
  4. Step 4: Simplify right side
    3,487.89x = 9,515,700.32
  5. Step 5: Solve for x
    x = 9,515,700.32/3,487.89
  6. Step 6: Final answer
    x = 2,728.21

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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.