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Finding the Fourth Proportional to 3,987.54, 5,981.32 and 1,793.71

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Solution

The fourth proportional to 3,987.54, 5,981.32 and 1,793.71 is: 2,690.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,987.54 : 5,981.32 = 1,793.71 : x
  2. Step 2: Convert to fraction form
    3,987.54/5,981.32 = 1,793.71/x
  3. Step 3: Cross multiply
    3,987.54x = 5,981.32 × 1,793.71
  4. Step 4: Simplify right side
    3,987.54x = 10,728,729.58
  5. Step 5: Solve for x
    x = 10,728,729.58/3,987.54
  6. Step 6: Final answer
    x = 2,690.56

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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.