Home / 5,229.92-7,217.32-2,872.08

Finding the Fourth Proportional to 5,229.92, 7,217.32 and 2,872.08

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Solution

The fourth proportional to 5,229.92, 7,217.32 and 2,872.08 is: 3,963.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.92 : 7,217.32 = 2,872.08 : x
  2. Step 2: Convert to fraction form
    5,229.92/7,217.32 = 2,872.08/x
  3. Step 3: Cross multiply
    5,229.92x = 7,217.32 × 2,872.08
  4. Step 4: Simplify right side
    5,229.92x = 20,728,720.43
  5. Step 5: Solve for x
    x = 20,728,720.43/5,229.92
  6. Step 6: Final answer
    x = 3,963.49

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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.