Home / 5,229.89-7,217.20-2,872.07

Finding the Fourth Proportional to 5,229.89, 7,217.20 and 2,872.07

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Solution

The fourth proportional to 5,229.89, 7,217.20 and 2,872.07 is: 3,963.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.89 : 7,217.20 = 2,872.07 : x
  2. Step 2: Convert to fraction form
    5,229.89/7,217.20 = 2,872.07/x
  3. Step 3: Cross multiply
    5,229.89x = 7,217.20 × 2,872.07
  4. Step 4: Simplify right side
    5,229.89x = 20,728,303.60
  5. Step 5: Solve for x
    x = 20,728,303.60/5,229.89
  6. Step 6: Final answer
    x = 3,963.43

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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.