Home / 2,550.20-3,817.20-1,821.20

Finding the Fourth Proportional to 2,550.20, 3,817.20 and 1,821.20

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Solution

The fourth proportional to 2,550.20, 3,817.20 and 1,821.20 is: 2,726.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,550.20 : 3,817.20 = 1,821.20 : x
  2. Step 2: Convert to fraction form
    2,550.20/3,817.20 = 1,821.20/x
  3. Step 3: Cross multiply
    2,550.20x = 3,817.20 × 1,821.20
  4. Step 4: Simplify right side
    2,550.20x = 6,951,884.64
  5. Step 5: Solve for x
    x = 6,951,884.64/2,550.20
  6. Step 6: Final answer
    x = 2,726.02

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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.