Home / 7,988.25-11,982.39-2,144.42

Finding the Fourth Proportional to 7,988.25, 11,982.39 and 2,144.42

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Solution

The fourth proportional to 7,988.25, 11,982.39 and 2,144.42 is: 3,216.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.25 : 11,982.39 = 2,144.42 : x
  2. Step 2: Convert to fraction form
    7,988.25/11,982.39 = 2,144.42/x
  3. Step 3: Cross multiply
    7,988.25x = 11,982.39 × 2,144.42
  4. Step 4: Simplify right side
    7,988.25x = 25,695,276.76
  5. Step 5: Solve for x
    x = 25,695,276.76/7,988.25
  6. Step 6: Final answer
    x = 3,216.63

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Similar ratio
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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.