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Finding the Third Proportional to 2,988 and 6,306

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Solution

The third proportional to 2,988 and 6,306 is: 13,308.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988 : 6,306 = 6,306 : x
  2. Step 2: Convert to fraction form
    2,988/6,306 = 6,306/x
  3. Step 3: Cross multiply
    2,988x = 6,306 × 6,306
  4. Step 4: Simplify right side
    2,988x = 39,765,636
  5. Step 5: Solve for x
    x = 39,765,636/2,988
  6. Step 6: Final answer
    x = 13,308.45

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.