Home / 2,080.01-3,121.77-1,039.70

Finding the Fourth Proportional to 2,080.01, 3,121.77 and 1,039.70

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Solution

The fourth proportional to 2,080.01, 3,121.77 and 1,039.70 is: 1,560.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.01 : 3,121.77 = 1,039.70 : x
  2. Step 2: Convert to fraction form
    2,080.01/3,121.77 = 1,039.70/x
  3. Step 3: Cross multiply
    2,080.01x = 3,121.77 × 1,039.70
  4. Step 4: Simplify right side
    2,080.01x = 3,245,715.97
  5. Step 5: Solve for x
    x = 3,245,715.97/2,080.01
  6. Step 6: Final answer
    x = 1,560.43

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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.