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Finding the Fourth Proportional to 7,951.38, 11,927.07 and 2,479.38

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Solution

The fourth proportional to 7,951.38, 11,927.07 and 2,479.38 is: 3,719.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.38 : 11,927.07 = 2,479.38 : x
  2. Step 2: Convert to fraction form
    7,951.38/11,927.07 = 2,479.38/x
  3. Step 3: Cross multiply
    7,951.38x = 11,927.07 × 2,479.38
  4. Step 4: Simplify right side
    7,951.38x = 29,571,672.98
  5. Step 5: Solve for x
    x = 29,571,672.98/7,951.38
  6. Step 6: Final answer
    x = 3,719.06

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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.