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Finding the Fourth Proportional to 5,713.40, 8,564.70 and 3,375.20

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Solution

The fourth proportional to 5,713.40, 8,564.70 and 3,375.20 is: 5,059.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,713.40 : 8,564.70 = 3,375.20 : x
  2. Step 2: Convert to fraction form
    5,713.40/8,564.70 = 3,375.20/x
  3. Step 3: Cross multiply
    5,713.40x = 8,564.70 × 3,375.20
  4. Step 4: Simplify right side
    5,713.40x = 28,907,575.44
  5. Step 5: Solve for x
    x = 28,907,575.44/5,713.40
  6. Step 6: Final answer
    x = 5,059.61

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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.