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Finding the Third Proportional to 3,591 and 6,813

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Solution

The third proportional to 3,591 and 6,813 is: 12,925.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,591 : 6,813 = 6,813 : x
  2. Step 2: Convert to fraction form
    3,591/6,813 = 6,813/x
  3. Step 3: Cross multiply
    3,591x = 6,813 × 6,813
  4. Step 4: Simplify right side
    3,591x = 46,416,969
  5. Step 5: Solve for x
    x = 46,416,969/3,591
  6. Step 6: Final answer
    x = 12,925.92

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Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.