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Finding the Fourth Proportional to 1,422.55, 2,134.11 and 600.82

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Solution

The fourth proportional to 1,422.55, 2,134.11 and 600.82 is: 901.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422.55 : 2,134.11 = 600.82 : x
  2. Step 2: Convert to fraction form
    1,422.55/2,134.11 = 600.82/x
  3. Step 3: Cross multiply
    1,422.55x = 2,134.11 × 600.82
  4. Step 4: Simplify right side
    1,422.55x = 1,282,215.97
  5. Step 5: Solve for x
    x = 1,282,215.97/1,422.55
  6. Step 6: Final answer
    x = 901.35

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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.