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Finding the Third Proportional to 1,306.75 and 2,803.25

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Solution

The third proportional to 1,306.75 and 2,803.25 is: 6,013.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306.75 : 2,803.25 = 2,803.25 : x
  2. Step 2: Convert to fraction form
    1,306.75/2,803.25 = 2,803.25/x
  3. Step 3: Cross multiply
    1,306.75x = 2,803.25 × 2,803.25
  4. Step 4: Simplify right side
    1,306.75x = 7,858,210.56
  5. Step 5: Solve for x
    x = 7,858,210.56/1,306.75
  6. Step 6: Final answer
    x = 6,013.55

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.