Home / 7,988.82-11,979.18-2,440.86

Finding the Fourth Proportional to 7,988.82, 11,979.18 and 2,440.86

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Solution

The fourth proportional to 7,988.82, 11,979.18 and 2,440.86 is: 3,660.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.82 : 11,979.18 = 2,440.86 : x
  2. Step 2: Convert to fraction form
    7,988.82/11,979.18 = 2,440.86/x
  3. Step 3: Cross multiply
    7,988.82x = 11,979.18 × 2,440.86
  4. Step 4: Simplify right side
    7,988.82x = 29,239,501.29
  5. Step 5: Solve for x
    x = 29,239,501.29/7,988.82
  6. Step 6: Final answer
    x = 3,660.05

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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.