Home / 7,418.52-11,128.32-2,224.80

Finding the Fourth Proportional to 7,418.52, 11,128.32 and 2,224.80

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Solution

The fourth proportional to 7,418.52, 11,128.32 and 2,224.80 is: 3,337.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.52 : 11,128.32 = 2,224.80 : x
  2. Step 2: Convert to fraction form
    7,418.52/11,128.32 = 2,224.80/x
  3. Step 3: Cross multiply
    7,418.52x = 11,128.32 × 2,224.80
  4. Step 4: Simplify right side
    7,418.52x = 24,758,286.34
  5. Step 5: Solve for x
    x = 24,758,286.34/7,418.52
  6. Step 6: Final answer
    x = 3,337.36

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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.