Home / 7,922.28-11,882.51-2,079.35

Finding the Fourth Proportional to 7,922.28, 11,882.51 and 2,079.35

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Solution

The fourth proportional to 7,922.28, 11,882.51 and 2,079.35 is: 3,118.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,922.28 : 11,882.51 = 2,079.35 : x
  2. Step 2: Convert to fraction form
    7,922.28/11,882.51 = 2,079.35/x
  3. Step 3: Cross multiply
    7,922.28x = 11,882.51 × 2,079.35
  4. Step 4: Simplify right side
    7,922.28x = 24,707,879.72
  5. Step 5: Solve for x
    x = 24,707,879.72/7,922.28
  6. Step 6: Final answer
    x = 3,118.78

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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.