Home / 3,983.01-5,974.79-1,209.90

Finding the Fourth Proportional to 3,983.01, 5,974.79 and 1,209.90

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Solution

The fourth proportional to 3,983.01, 5,974.79 and 1,209.90 is: 1,814.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,983.01 : 5,974.79 = 1,209.90 : x
  2. Step 2: Convert to fraction form
    3,983.01/5,974.79 = 1,209.90/x
  3. Step 3: Cross multiply
    3,983.01x = 5,974.79 × 1,209.90
  4. Step 4: Simplify right side
    3,983.01x = 7,228,892.37
  5. Step 5: Solve for x
    x = 7,228,892.37/3,983.01
  6. Step 6: Final answer
    x = 1,814.93

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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.