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Finding the Third Proportional to 1,817.50 and 4,375

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Solution

The third proportional to 1,817.50 and 4,375 is: 10,531.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.50 : 4,375 = 4,375 : x
  2. Step 2: Convert to fraction form
    1,817.50/4,375 = 4,375/x
  3. Step 3: Cross multiply
    1,817.50x = 4,375 × 4,375
  4. Step 4: Simplify right side
    1,817.50x = 19,140,625
  5. Step 5: Solve for x
    x = 19,140,625/1,817.50
  6. Step 6: Final answer
    x = 10,531.29

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Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.