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Finding the Third Proportional to 755.50 and 1,786.25

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Solution

The third proportional to 755.50 and 1,786.25 is: 4,223.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    755.50 : 1,786.25 = 1,786.25 : x
  2. Step 2: Convert to fraction form
    755.50/1,786.25 = 1,786.25/x
  3. Step 3: Cross multiply
    755.50x = 1,786.25 × 1,786.25
  4. Step 4: Simplify right side
    755.50x = 3,190,689.06
  5. Step 5: Solve for x
    x = 3,190,689.06/755.50
  6. Step 6: Final answer
    x = 4,223.28

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.