Home / 2,821.82-4,230.38-1,360.22

Finding the Fourth Proportional to 2,821.82, 4,230.38 and 1,360.22

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Solution

The fourth proportional to 2,821.82, 4,230.38 and 1,360.22 is: 2,039.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.82 : 4,230.38 = 1,360.22 : x
  2. Step 2: Convert to fraction form
    2,821.82/4,230.38 = 1,360.22/x
  3. Step 3: Cross multiply
    2,821.82x = 4,230.38 × 1,360.22
  4. Step 4: Simplify right side
    2,821.82x = 5,754,229.73
  5. Step 5: Solve for x
    x = 5,754,229.73/2,821.82
  6. Step 6: Final answer
    x = 2,039.19

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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.