Home / 2,821.33-4,233.61-2,203.30

Finding the Fourth Proportional to 2,821.33, 4,233.61 and 2,203.30

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Solution

The fourth proportional to 2,821.33, 4,233.61 and 2,203.30 is: 3,306.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.33 : 4,233.61 = 2,203.30 : x
  2. Step 2: Convert to fraction form
    2,821.33/4,233.61 = 2,203.30/x
  3. Step 3: Cross multiply
    2,821.33x = 4,233.61 × 2,203.30
  4. Step 4: Simplify right side
    2,821.33x = 9,327,891.74
  5. Step 5: Solve for x
    x = 9,327,891.74/2,821.33
  6. Step 6: Final answer
    x = 3,306.21

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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.