Home / 3,982.20-5,971.08-2,132.76

Finding the Fourth Proportional to 3,982.20, 5,971.08 and 2,132.76

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Solution

The fourth proportional to 3,982.20, 5,971.08 and 2,132.76 is: 3,197.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.20 : 5,971.08 = 2,132.76 : x
  2. Step 2: Convert to fraction form
    3,982.20/5,971.08 = 2,132.76/x
  3. Step 3: Cross multiply
    3,982.20x = 5,971.08 × 2,132.76
  4. Step 4: Simplify right side
    3,982.20x = 12,734,880.58
  5. Step 5: Solve for x
    x = 12,734,880.58/3,982.20
  6. Step 6: Final answer
    x = 3,197.95

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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.