Home / 5,229.86-7,217.30-2,872.22

Finding the Fourth Proportional to 5,229.86, 7,217.30 and 2,872.22

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Solution

The fourth proportional to 5,229.86, 7,217.30 and 2,872.22 is: 3,963.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.86 : 7,217.30 = 2,872.22 : x
  2. Step 2: Convert to fraction form
    5,229.86/7,217.30 = 2,872.22/x
  3. Step 3: Cross multiply
    5,229.86x = 7,217.30 × 2,872.22
  4. Step 4: Simplify right side
    5,229.86x = 20,729,673.41
  5. Step 5: Solve for x
    x = 20,729,673.41/5,229.86
  6. Step 6: Final answer
    x = 3,963.71

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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.