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Finding the Third Proportional to 2,742 and 4,253.50

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Solution

The third proportional to 2,742 and 4,253.50 is: 6,598.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742 : 4,253.50 = 4,253.50 : x
  2. Step 2: Convert to fraction form
    2,742/4,253.50 = 4,253.50/x
  3. Step 3: Cross multiply
    2,742x = 4,253.50 × 4,253.50
  4. Step 4: Simplify right side
    2,742x = 18,092,262.25
  5. Step 5: Solve for x
    x = 18,092,262.25/2,742
  6. Step 6: Final answer
    x = 6,598.20

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.