Home / 3,929.60-5,897.84-2,082.04

Finding the Fourth Proportional to 3,929.60, 5,897.84 and 2,082.04

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Solution

The fourth proportional to 3,929.60, 5,897.84 and 2,082.04 is: 3,124.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,929.60 : 5,897.84 = 2,082.04 : x
  2. Step 2: Convert to fraction form
    3,929.60/5,897.84 = 2,082.04/x
  3. Step 3: Cross multiply
    3,929.60x = 5,897.84 × 2,082.04
  4. Step 4: Simplify right side
    3,929.60x = 12,279,538.79
  5. Step 5: Solve for x
    x = 12,279,538.79/3,929.60
  6. Step 6: Final answer
    x = 3,124.88

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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.