Home / 3,983.03-5,974.85-1,209.95

Finding the Fourth Proportional to 3,983.03, 5,974.85 and 1,209.95

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Solution

The fourth proportional to 3,983.03, 5,974.85 and 1,209.95 is: 1,815.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.03 : 5,974.85 = 1,209.95 : x
  2. Step 2: Convert to fraction form
    3,983.03/5,974.85 = 1,209.95/x
  3. Step 3: Cross multiply
    3,983.03x = 5,974.85 × 1,209.95
  4. Step 4: Simplify right side
    3,983.03x = 7,229,287.72
  5. Step 5: Solve for x
    x = 7,229,287.72/3,983.03
  6. Step 6: Final answer
    x = 1,815.02

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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.