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Finding the Third Proportional to 2,661 and 4,102.50

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Solution

The third proportional to 2,661 and 4,102.50 is: 6,324.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661 : 4,102.50 = 4,102.50 : x
  2. Step 2: Convert to fraction form
    2,661/4,102.50 = 4,102.50/x
  3. Step 3: Cross multiply
    2,661x = 4,102.50 × 4,102.50
  4. Step 4: Simplify right side
    2,661x = 16,830,506.25
  5. Step 5: Solve for x
    x = 16,830,506.25/2,661
  6. Step 6: Final answer
    x = 6,324.88

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.