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Finding the Third Proportional to 2,988 and 4,025

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Solution

The third proportional to 2,988 and 4,025 is: 5,421.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988 : 4,025 = 4,025 : x
  2. Step 2: Convert to fraction form
    2,988/4,025 = 4,025/x
  3. Step 3: Cross multiply
    2,988x = 4,025 × 4,025
  4. Step 4: Simplify right side
    2,988x = 16,200,625
  5. Step 5: Solve for x
    x = 16,200,625/2,988
  6. Step 6: Final answer
    x = 5,421.90

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.