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Finding the Fourth Proportional to 2,881.71, 3,976.49 and 1,702.55

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Solution

The fourth proportional to 2,881.71, 3,976.49 and 1,702.55 is: 2,349.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.71 : 3,976.49 = 1,702.55 : x
  2. Step 2: Convert to fraction form
    2,881.71/3,976.49 = 1,702.55/x
  3. Step 3: Cross multiply
    2,881.71x = 3,976.49 × 1,702.55
  4. Step 4: Simplify right side
    2,881.71x = 6,770,187.25
  5. Step 5: Solve for x
    x = 6,770,187.25/2,881.71
  6. Step 6: Final answer
    x = 2,349.36

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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.