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Finding the Fourth Proportional to 6,432.87, 8,879.23 and 3,744.71

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Solution

The fourth proportional to 6,432.87, 8,879.23 and 3,744.71 is: 5,168.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,432.87 : 8,879.23 = 3,744.71 : x
  2. Step 2: Convert to fraction form
    6,432.87/8,879.23 = 3,744.71/x
  3. Step 3: Cross multiply
    6,432.87x = 8,879.23 × 3,744.71
  4. Step 4: Simplify right side
    6,432.87x = 33,250,141.37
  5. Step 5: Solve for x
    x = 33,250,141.37/6,432.87
  6. Step 6: Final answer
    x = 5,168.79

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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.