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Finding the Third Proportional to 1,817 and 3,445

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Solution

The third proportional to 1,817 and 3,445 is: 6,531.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817 : 3,445 = 3,445 : x
  2. Step 2: Convert to fraction form
    1,817/3,445 = 3,445/x
  3. Step 3: Cross multiply
    1,817x = 3,445 × 3,445
  4. Step 4: Simplify right side
    1,817x = 11,868,025
  5. Step 5: Solve for x
    x = 11,868,025/1,817
  6. Step 6: Final answer
    x = 6,531.66

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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.