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Finding the Third Proportional to 1,996.50 and 3,948

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Solution

The third proportional to 1,996.50 and 3,948 is: 7,807.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996.50 : 3,948 = 3,948 : x
  2. Step 2: Convert to fraction form
    1,996.50/3,948 = 3,948/x
  3. Step 3: Cross multiply
    1,996.50x = 3,948 × 3,948
  4. Step 4: Simplify right side
    1,996.50x = 15,586,704
  5. Step 5: Solve for x
    x = 15,586,704/1,996.50
  6. Step 6: Final answer
    x = 7,807.01

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Why These Related Problems?

These problems maintain the same ratio (1.98) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.