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Finding the Fourth Proportional to 3,883.74, 5,819.78 and 3,154.74

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Solution

The fourth proportional to 3,883.74, 5,819.78 and 3,154.74 is: 4,727.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,883.74 : 5,819.78 = 3,154.74 : x
  2. Step 2: Convert to fraction form
    3,883.74/5,819.78 = 3,154.74/x
  3. Step 3: Cross multiply
    3,883.74x = 5,819.78 × 3,154.74
  4. Step 4: Simplify right side
    3,883.74x = 18,359,892.76
  5. Step 5: Solve for x
    x = 18,359,892.76/3,883.74
  6. Step 6: Final answer
    x = 4,727.37

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1.5x scale

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.