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Finding the Fourth Proportional to 7,317, 10,079.64 and 5,546.88

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Solution

The fourth proportional to 7,317, 10,079.64 and 5,546.88 is: 7,641.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,317 : 10,079.64 = 5,546.88 : x
  2. Step 2: Convert to fraction form
    7,317/10,079.64 = 5,546.88/x
  3. Step 3: Cross multiply
    7,317x = 10,079.64 × 5,546.88
  4. Step 4: Simplify right side
    7,317x = 55,910,553.52
  5. Step 5: Solve for x
    x = 55,910,553.52/7,317
  6. Step 6: Final answer
    x = 7,641.19

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1.5x scale

Why These Related Problems?

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