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Finding the Fourth Proportional to 5,575.73, 8,364 and 1,680.44

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Solution

The fourth proportional to 5,575.73, 8,364 and 1,680.44 is: 2,520.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,575.73 : 8,364 = 1,680.44 : x
  2. Step 2: Convert to fraction form
    5,575.73/8,364 = 1,680.44/x
  3. Step 3: Cross multiply
    5,575.73x = 8,364 × 1,680.44
  4. Step 4: Simplify right side
    5,575.73x = 14,055,200.16
  5. Step 5: Solve for x
    x = 14,055,200.16/5,575.73
  6. Step 6: Final answer
    x = 2,520.78

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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.