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Finding the Third Proportional to 1,662 and 4,012.50

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Solution

The third proportional to 1,662 and 4,012.50 is: 9,687.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,662 : 4,012.50 = 4,012.50 : x
  2. Step 2: Convert to fraction form
    1,662/4,012.50 = 4,012.50/x
  3. Step 3: Cross multiply
    1,662x = 4,012.50 × 4,012.50
  4. Step 4: Simplify right side
    1,662x = 16,100,156.25
  5. Step 5: Solve for x
    x = 16,100,156.25/1,662
  6. Step 6: Final answer
    x = 9,687.22

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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.