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Finding the Fourth Proportional to 5,344.39, 7,375.05 and 2,986.48

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Solution

The fourth proportional to 5,344.39, 7,375.05 and 2,986.48 is: 4,121.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,344.39 : 7,375.05 = 2,986.48 : x
  2. Step 2: Convert to fraction form
    5,344.39/7,375.05 = 2,986.48/x
  3. Step 3: Cross multiply
    5,344.39x = 7,375.05 × 2,986.48
  4. Step 4: Simplify right side
    5,344.39x = 22,025,439.32
  5. Step 5: Solve for x
    x = 22,025,439.32/5,344.39
  6. Step 6: Final answer
    x = 4,121.23

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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.