Home / 3,819.15-5,724.68-2,938.68

Finding the Fourth Proportional to 3,819.15, 5,724.68 and 2,938.68

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Solution

The fourth proportional to 3,819.15, 5,724.68 and 2,938.68 is: 4,404.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.15 : 5,724.68 = 2,938.68 : x
  2. Step 2: Convert to fraction form
    3,819.15/5,724.68 = 2,938.68/x
  3. Step 3: Cross multiply
    3,819.15x = 5,724.68 × 2,938.68
  4. Step 4: Simplify right side
    3,819.15x = 16,822,987.93
  5. Step 5: Solve for x
    x = 16,822,987.93/3,819.15
  6. Step 6: Final answer
    x = 4,404.90

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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.