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Finding the Fourth Proportional to 7,425.92, 10,247.64 and 4,068.80

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Solution

The fourth proportional to 7,425.92, 10,247.64 and 4,068.80 is: 5,614.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,425.92 : 10,247.64 = 4,068.80 : x
  2. Step 2: Convert to fraction form
    7,425.92/10,247.64 = 4,068.80/x
  3. Step 3: Cross multiply
    7,425.92x = 10,247.64 × 4,068.80
  4. Step 4: Simplify right side
    7,425.92x = 41,695,597.63
  5. Step 5: Solve for x
    x = 41,695,597.63/7,425.92
  6. Step 6: Final answer
    x = 5,614.87

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.