Home / 7,922.92-11,883.66-2,079.40

Finding the Fourth Proportional to 7,922.92, 11,883.66 and 2,079.40

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Solution

The fourth proportional to 7,922.92, 11,883.66 and 2,079.40 is: 3,118.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,922.92 : 11,883.66 = 2,079.40 : x
  2. Step 2: Convert to fraction form
    7,922.92/11,883.66 = 2,079.40/x
  3. Step 3: Cross multiply
    7,922.92x = 11,883.66 × 2,079.40
  4. Step 4: Simplify right side
    7,922.92x = 24,710,882.60
  5. Step 5: Solve for x
    x = 24,710,882.60/7,922.92
  6. Step 6: Final answer
    x = 3,118.91

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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.