Home / 3,983.76-5,974.68-1,518.12

Finding the Fourth Proportional to 3,983.76, 5,974.68 and 1,518.12

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Solution

The fourth proportional to 3,983.76, 5,974.68 and 1,518.12 is: 2,276.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.76 : 5,974.68 = 1,518.12 : x
  2. Step 2: Convert to fraction form
    3,983.76/5,974.68 = 1,518.12/x
  3. Step 3: Cross multiply
    3,983.76x = 5,974.68 × 1,518.12
  4. Step 4: Simplify right side
    3,983.76x = 9,070,281.20
  5. Step 5: Solve for x
    x = 9,070,281.20/3,983.76
  6. Step 6: Final answer
    x = 2,276.81

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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.