Home / 5,233.55-7,221.22-3,108.78

Finding the Fourth Proportional to 5,233.55, 7,221.22 and 3,108.78

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Solution

The fourth proportional to 5,233.55, 7,221.22 and 3,108.78 is: 4,289.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,233.55 : 7,221.22 = 3,108.78 : x
  2. Step 2: Convert to fraction form
    5,233.55/7,221.22 = 3,108.78/x
  3. Step 3: Cross multiply
    5,233.55x = 7,221.22 × 3,108.78
  4. Step 4: Simplify right side
    5,233.55x = 22,449,176.54
  5. Step 5: Solve for x
    x = 22,449,176.54/5,233.55
  6. Step 6: Final answer
    x = 4,289.48

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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.