Home / 2,080.80-3,122.28-1,350.72

Finding the Fourth Proportional to 2,080.80, 3,122.28 and 1,350.72

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Solution

The fourth proportional to 2,080.80, 3,122.28 and 1,350.72 is: 2,026.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.80 : 3,122.28 = 1,350.72 : x
  2. Step 2: Convert to fraction form
    2,080.80/3,122.28 = 1,350.72/x
  3. Step 3: Cross multiply
    2,080.80x = 3,122.28 × 1,350.72
  4. Step 4: Simplify right side
    2,080.80x = 4,217,326.04
  5. Step 5: Solve for x
    x = 4,217,326.04/2,080.80
  6. Step 6: Final answer
    x = 2,026.78

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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.