Home / 7,229.20-9,975.82-4,042.25

Finding the Fourth Proportional to 7,229.20, 9,975.82 and 4,042.25

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Solution

The fourth proportional to 7,229.20, 9,975.82 and 4,042.25 is: 5,578.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,229.20 : 9,975.82 = 4,042.25 : x
  2. Step 2: Convert to fraction form
    7,229.20/9,975.82 = 4,042.25/x
  3. Step 3: Cross multiply
    7,229.20x = 9,975.82 × 4,042.25
  4. Step 4: Simplify right side
    7,229.20x = 40,324,754.86
  5. Step 5: Solve for x
    x = 40,324,754.86/7,229.20
  6. Step 6: Final answer
    x = 5,578.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.