Home / 3,028.80-4,543.20-1,489.92

Finding the Fourth Proportional to 3,028.80, 4,543.20 and 1,489.92

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Solution

The fourth proportional to 3,028.80, 4,543.20 and 1,489.92 is: 2,234.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,028.80 : 4,543.20 = 1,489.92 : x
  2. Step 2: Convert to fraction form
    3,028.80/4,543.20 = 1,489.92/x
  3. Step 3: Cross multiply
    3,028.80x = 4,543.20 × 1,489.92
  4. Step 4: Simplify right side
    3,028.80x = 6,769,004.54
  5. Step 5: Solve for x
    x = 6,769,004.54/3,028.80
  6. Step 6: Final answer
    x = 2,234.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.