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Finding the Third Proportional to 2,655 and 3,858

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Solution

The third proportional to 2,655 and 3,858 is: 5,606.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655 : 3,858 = 3,858 : x
  2. Step 2: Convert to fraction form
    2,655/3,858 = 3,858/x
  3. Step 3: Cross multiply
    2,655x = 3,858 × 3,858
  4. Step 4: Simplify right side
    2,655x = 14,884,164
  5. Step 5: Solve for x
    x = 14,884,164/2,655
  6. Step 6: Final answer
    x = 5,606.09

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.