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Finding the Third Proportional to 2,742.75 and 3,772.13

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Solution

The third proportional to 2,742.75 and 3,772.13 is: 5,187.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.75 : 3,772.13 = 3,772.13 : x
  2. Step 2: Convert to fraction form
    2,742.75/3,772.13 = 3,772.13/x
  3. Step 3: Cross multiply
    2,742.75x = 3,772.13 × 3,772.13
  4. Step 4: Simplify right side
    2,742.75x = 14,228,927.02
  5. Step 5: Solve for x
    x = 14,228,927.02/2,742.75
  6. Step 6: Final answer
    x = 5,187.83

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