Home / 7,987.05-11,982.33-2,440.82

Finding the Fourth Proportional to 7,987.05, 11,982.33 and 2,440.82

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Solution

The fourth proportional to 7,987.05, 11,982.33 and 2,440.82 is: 3,661.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,987.05 : 11,982.33 = 2,440.82 : x
  2. Step 2: Convert to fraction form
    7,987.05/11,982.33 = 2,440.82/x
  3. Step 3: Cross multiply
    7,987.05x = 11,982.33 × 2,440.82
  4. Step 4: Simplify right side
    7,987.05x = 29,246,740.67
  5. Step 5: Solve for x
    x = 29,246,740.67/7,987.05
  6. Step 6: Final answer
    x = 3,661.77

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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.