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Finding the Fourth Proportional to 3,728.19, 5,591.94 and 954.79

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Solution

The fourth proportional to 3,728.19, 5,591.94 and 954.79 is: 1,432.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,728.19 : 5,591.94 = 954.79 : x
  2. Step 2: Convert to fraction form
    3,728.19/5,591.94 = 954.79/x
  3. Step 3: Cross multiply
    3,728.19x = 5,591.94 × 954.79
  4. Step 4: Simplify right side
    3,728.19x = 5,339,110.83
  5. Step 5: Solve for x
    x = 5,339,110.83/3,728.19
  6. Step 6: Final answer
    x = 1,432.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.