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Finding the Fourth Proportional to 2,827.73, 3,902.48 and 1,568.78

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Solution

The fourth proportional to 2,827.73, 3,902.48 and 1,568.78 is: 2,165.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,827.73 : 3,902.48 = 1,568.78 : x
  2. Step 2: Convert to fraction form
    2,827.73/3,902.48 = 1,568.78/x
  3. Step 3: Cross multiply
    2,827.73x = 3,902.48 × 1,568.78
  4. Step 4: Simplify right side
    2,827.73x = 6,122,105.22
  5. Step 5: Solve for x
    x = 6,122,105.22/2,827.73
  6. Step 6: Final answer
    x = 2,165.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.