Home / 5,230.20-7,217.36-2,872.28

Finding the Fourth Proportional to 5,230.20, 7,217.36 and 2,872.28

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Solution

The fourth proportional to 5,230.20, 7,217.36 and 2,872.28 is: 3,963.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,230.20 : 7,217.36 = 2,872.28 : x
  2. Step 2: Convert to fraction form
    5,230.20/7,217.36 = 2,872.28/x
  3. Step 3: Cross multiply
    5,230.20x = 7,217.36 × 2,872.28
  4. Step 4: Simplify right side
    5,230.20x = 20,730,278.78
  5. Step 5: Solve for x
    x = 20,730,278.78/5,230.20
  6. Step 6: Final answer
    x = 3,963.57

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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.