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Finding the Fourth Proportional to 5,375.28, 8,063.28 and 1,479.36

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Solution

The fourth proportional to 5,375.28, 8,063.28 and 1,479.36 is: 2,219.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,375.28 : 8,063.28 = 1,479.36 : x
  2. Step 2: Convert to fraction form
    5,375.28/8,063.28 = 1,479.36/x
  3. Step 3: Cross multiply
    5,375.28x = 8,063.28 × 1,479.36
  4. Step 4: Simplify right side
    5,375.28x = 11,928,493.90
  5. Step 5: Solve for x
    x = 11,928,493.90/5,375.28
  6. Step 6: Final answer
    x = 2,219.14

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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.