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Finding the Fourth Proportional to 3,881.32, 5,819.28 and 1,800.16

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Solution

The fourth proportional to 3,881.32, 5,819.28 and 1,800.16 is: 2,698.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.32 : 5,819.28 = 1,800.16 : x
  2. Step 2: Convert to fraction form
    3,881.32/5,819.28 = 1,800.16/x
  3. Step 3: Cross multiply
    3,881.32x = 5,819.28 × 1,800.16
  4. Step 4: Simplify right side
    3,881.32x = 10,475,635.08
  5. Step 5: Solve for x
    x = 10,475,635.08/3,881.32
  6. Step 6: Final answer
    x = 2,698.99

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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.