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Finding the Fourth Proportional to 2,281.90, 3,422.84 and 550.53

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Solution

The fourth proportional to 2,281.90, 3,422.84 and 550.53 is: 825.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.90 : 3,422.84 = 550.53 : x
  2. Step 2: Convert to fraction form
    2,281.90/3,422.84 = 550.53/x
  3. Step 3: Cross multiply
    2,281.90x = 3,422.84 × 550.53
  4. Step 4: Simplify right side
    2,281.90x = 1,884,358.99
  5. Step 5: Solve for x
    x = 1,884,358.99/2,281.90
  6. Step 6: Final answer
    x = 825.79

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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.