Home / 5,229.28-7,216.46-2,871.47

Finding the Fourth Proportional to 5,229.28, 7,216.46 and 2,871.47

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Solution

The fourth proportional to 5,229.28, 7,216.46 and 2,871.47 is: 3,962.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.28 : 7,216.46 = 2,871.47 : x
  2. Step 2: Convert to fraction form
    5,229.28/7,216.46 = 2,871.47/x
  3. Step 3: Cross multiply
    5,229.28x = 7,216.46 × 2,871.47
  4. Step 4: Simplify right side
    5,229.28x = 20,721,862.85
  5. Step 5: Solve for x
    x = 20,721,862.85/5,229.28
  6. Step 6: Final answer
    x = 3,962.66

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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.