Home / 4,251.39-6,376.91-1,478.69

Finding the Fourth Proportional to 4,251.39, 6,376.91 and 1,478.69

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Solution

The fourth proportional to 4,251.39, 6,376.91 and 1,478.69 is: 2,217.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,251.39 : 6,376.91 = 1,478.69 : x
  2. Step 2: Convert to fraction form
    4,251.39/6,376.91 = 1,478.69/x
  3. Step 3: Cross multiply
    4,251.39x = 6,376.91 × 1,478.69
  4. Step 4: Simplify right side
    4,251.39x = 9,429,473.05
  5. Step 5: Solve for x
    x = 9,429,473.05/4,251.39
  6. Step 6: Final answer
    x = 2,217.97

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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.