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Finding the Fourth Proportional to 2,479.92, 3,726.26 and 1,869.38

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Solution

The fourth proportional to 2,479.92, 3,726.26 and 1,869.38 is: 2,808.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,479.92 : 3,726.26 = 1,869.38 : x
  2. Step 2: Convert to fraction form
    2,479.92/3,726.26 = 1,869.38/x
  3. Step 3: Cross multiply
    2,479.92x = 3,726.26 × 1,869.38
  4. Step 4: Simplify right side
    2,479.92x = 6,965,767.94
  5. Step 5: Solve for x
    x = 6,965,767.94/2,479.92
  6. Step 6: Final answer
    x = 2,808.87

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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.