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Finding the Fourth Proportional to 2,774.97, 4,162.46 and 827.02

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Solution

The fourth proportional to 2,774.97, 4,162.46 and 827.02 is: 1,240.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,774.97 : 4,162.46 = 827.02 : x
  2. Step 2: Convert to fraction form
    2,774.97/4,162.46 = 827.02/x
  3. Step 3: Cross multiply
    2,774.97x = 4,162.46 × 827.02
  4. Step 4: Simplify right side
    2,774.97x = 3,442,438.74
  5. Step 5: Solve for x
    x = 3,442,438.74/2,774.97
  6. Step 6: Final answer
    x = 1,240.53

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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.