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Finding the Fourth Proportional to 2,702.88, 4,047.76 and 2,488.96

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Solution

The fourth proportional to 2,702.88, 4,047.76 and 2,488.96 is: 3,727.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,702.88 : 4,047.76 = 2,488.96 : x
  2. Step 2: Convert to fraction form
    2,702.88/4,047.76 = 2,488.96/x
  3. Step 3: Cross multiply
    2,702.88x = 4,047.76 × 2,488.96
  4. Step 4: Simplify right side
    2,702.88x = 10,074,712.73
  5. Step 5: Solve for x
    x = 10,074,712.73/2,702.88
  6. Step 6: Final answer
    x = 3,727.40

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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.