Home / 3,080.69-4,251.66-1,822.15

Finding the Fourth Proportional to 3,080.69, 4,251.66 and 1,822.15

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Solution

The fourth proportional to 3,080.69, 4,251.66 and 1,822.15 is: 2,514.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.69 : 4,251.66 = 1,822.15 : x
  2. Step 2: Convert to fraction form
    3,080.69/4,251.66 = 1,822.15/x
  3. Step 3: Cross multiply
    3,080.69x = 4,251.66 × 1,822.15
  4. Step 4: Simplify right side
    3,080.69x = 7,747,131.90
  5. Step 5: Solve for x
    x = 7,747,131.90/3,080.69
  6. Step 6: Final answer
    x = 2,514.74

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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.