Home / 7,991.92-11,979.66-3,060.24

Finding the Fourth Proportional to 7,991.92, 11,979.66 and 3,060.24

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Solution

The fourth proportional to 7,991.92, 11,979.66 and 3,060.24 is: 4,587.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,991.92 : 11,979.66 = 3,060.24 : x
  2. Step 2: Convert to fraction form
    7,991.92/11,979.66 = 3,060.24/x
  3. Step 3: Cross multiply
    7,991.92x = 11,979.66 × 3,060.24
  4. Step 4: Simplify right side
    7,991.92x = 36,660,634.72
  5. Step 5: Solve for x
    x = 36,660,634.72/7,991.92
  6. Step 6: Final answer
    x = 4,587.21

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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.