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Finding the Fourth Proportional to 4,171.74, 6,229.76 and 3,928.74

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Solution

The fourth proportional to 4,171.74, 6,229.76 and 3,928.74 is: 5,866.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,171.74 : 6,229.76 = 3,928.74 : x
  2. Step 2: Convert to fraction form
    4,171.74/6,229.76 = 3,928.74/x
  3. Step 3: Cross multiply
    4,171.74x = 6,229.76 × 3,928.74
  4. Step 4: Simplify right side
    4,171.74x = 24,475,087.66
  5. Step 5: Solve for x
    x = 24,475,087.66/4,171.74
  6. Step 6: Final answer
    x = 5,866.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.