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Finding the Fourth Proportional to 7,391.50, 10,200.27 and 4,079.50

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Solution

The fourth proportional to 7,391.50, 10,200.27 and 4,079.50 is: 5,629.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,391.50 : 10,200.27 = 4,079.50 : x
  2. Step 2: Convert to fraction form
    7,391.50/10,200.27 = 4,079.50/x
  3. Step 3: Cross multiply
    7,391.50x = 10,200.27 × 4,079.50
  4. Step 4: Simplify right side
    7,391.50x = 41,612,001.47
  5. Step 5: Solve for x
    x = 41,612,001.47/7,391.50
  6. Step 6: Final answer
    x = 5,629.71

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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.