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Finding the Fourth Proportional to 3,958.47, 5,454.74 and 3,327.89

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Solution

The fourth proportional to 3,958.47, 5,454.74 and 3,327.89 is: 4,585.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.47 : 5,454.74 = 3,327.89 : x
  2. Step 2: Convert to fraction form
    3,958.47/5,454.74 = 3,327.89/x
  3. Step 3: Cross multiply
    3,958.47x = 5,454.74 × 3,327.89
  4. Step 4: Simplify right side
    3,958.47x = 18,152,755.74
  5. Step 5: Solve for x
    x = 18,152,755.74/3,958.47
  6. Step 6: Final answer
    x = 4,585.80

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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.