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Finding the Third Proportional to 2,988.75 and 6,945.38

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Solution

The third proportional to 2,988.75 and 6,945.38 is: 16,139.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.75 : 6,945.38 = 6,945.38 : x
  2. Step 2: Convert to fraction form
    2,988.75/6,945.38 = 6,945.38/x
  3. Step 3: Cross multiply
    2,988.75x = 6,945.38 × 6,945.38
  4. Step 4: Simplify right side
    2,988.75x = 48,238,233.89
  5. Step 5: Solve for x
    x = 48,238,233.89/2,988.75
  6. Step 6: Final answer
    x = 16,139.94

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.