Home / 5,231.28-7,215.30-4,049.76

Finding the Fourth Proportional to 5,231.28, 7,215.30 and 4,049.76

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Solution

The fourth proportional to 5,231.28, 7,215.30 and 4,049.76 is: 5,585.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.28 : 7,215.30 = 4,049.76 : x
  2. Step 2: Convert to fraction form
    5,231.28/7,215.30 = 4,049.76/x
  3. Step 3: Cross multiply
    5,231.28x = 7,215.30 × 4,049.76
  4. Step 4: Simplify right side
    5,231.28x = 29,220,233.33
  5. Step 5: Solve for x
    x = 29,220,233.33/5,231.28
  6. Step 6: Final answer
    x = 5,585.68

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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.