Home / 5,251.38-7,876.95-2,479.35

Finding the Fourth Proportional to 5,251.38, 7,876.95 and 2,479.35

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Solution

The fourth proportional to 5,251.38, 7,876.95 and 2,479.35 is: 3,718.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.38 : 7,876.95 = 2,479.35 : x
  2. Step 2: Convert to fraction form
    5,251.38/7,876.95 = 2,479.35/x
  3. Step 3: Cross multiply
    5,251.38x = 7,876.95 × 2,479.35
  4. Step 4: Simplify right side
    5,251.38x = 19,529,715.98
  5. Step 5: Solve for x
    x = 19,529,715.98/5,251.38
  6. Step 6: Final answer
    x = 3,718.97

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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.