Home / 3,614.20-5,418.10-2,151.80

Finding the Fourth Proportional to 3,614.20, 5,418.10 and 2,151.80

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Solution

The fourth proportional to 3,614.20, 5,418.10 and 2,151.80 is: 3,225.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,614.20 : 5,418.10 = 2,151.80 : x
  2. Step 2: Convert to fraction form
    3,614.20/5,418.10 = 2,151.80/x
  3. Step 3: Cross multiply
    3,614.20x = 5,418.10 × 2,151.80
  4. Step 4: Simplify right side
    3,614.20x = 11,658,667.58
  5. Step 5: Solve for x
    x = 11,658,667.58/3,614.20
  6. Step 6: Final answer
    x = 3,225.79

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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.