Home / 3,640.34-5,456.28-2,081.43

Finding the Fourth Proportional to 3,640.34, 5,456.28 and 2,081.43

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Solution

The fourth proportional to 3,640.34, 5,456.28 and 2,081.43 is: 3,119.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640.34 : 5,456.28 = 2,081.43 : x
  2. Step 2: Convert to fraction form
    3,640.34/5,456.28 = 2,081.43/x
  3. Step 3: Cross multiply
    3,640.34x = 5,456.28 × 2,081.43
  4. Step 4: Simplify right side
    3,640.34x = 11,356,864.88
  5. Step 5: Solve for x
    x = 11,356,864.88/3,640.34
  6. Step 6: Final answer
    x = 3,119.73

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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.