Home / 3,982.52-5,974.09-1,209.43

Finding the Fourth Proportional to 3,982.52, 5,974.09 and 1,209.43

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Solution

The fourth proportional to 3,982.52, 5,974.09 and 1,209.43 is: 1,814.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.52 : 5,974.09 = 1,209.43 : x
  2. Step 2: Convert to fraction form
    3,982.52/5,974.09 = 1,209.43/x
  3. Step 3: Cross multiply
    3,982.52x = 5,974.09 × 1,209.43
  4. Step 4: Simplify right side
    3,982.52x = 7,225,248.11
  5. Step 5: Solve for x
    x = 7,225,248.11/3,982.52
  6. Step 6: Final answer
    x = 1,814.24

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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.