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Finding the Fourth Proportional to 2,773.43, 4,160.16 and 825.65

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Solution

The fourth proportional to 2,773.43, 4,160.16 and 825.65 is: 1,238.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,773.43 : 4,160.16 = 825.65 : x
  2. Step 2: Convert to fraction form
    2,773.43/4,160.16 = 825.65/x
  3. Step 3: Cross multiply
    2,773.43x = 4,160.16 × 825.65
  4. Step 4: Simplify right side
    2,773.43x = 3,434,836.10
  5. Step 5: Solve for x
    x = 3,434,836.10/2,773.43
  6. Step 6: Final answer
    x = 1,238.48

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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.