Home / 3,819.92-5,728.74-2,177.24

Finding the Fourth Proportional to 3,819.92, 5,728.74 and 2,177.24

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Solution

The fourth proportional to 3,819.92, 5,728.74 and 2,177.24 is: 3,265.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.92 : 5,728.74 = 2,177.24 : x
  2. Step 2: Convert to fraction form
    3,819.92/5,728.74 = 2,177.24/x
  3. Step 3: Cross multiply
    3,819.92x = 5,728.74 × 2,177.24
  4. Step 4: Simplify right side
    3,819.92x = 12,472,841.88
  5. Step 5: Solve for x
    x = 12,472,841.88/3,819.92
  6. Step 6: Final answer
    x = 3,265.21

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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.