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Finding the Third Proportional to 1,822.50 and 2,821.08

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Solution

The third proportional to 1,822.50 and 2,821.08 is: 4,366.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,822.50 : 2,821.08 = 2,821.08 : x
  2. Step 2: Convert to fraction form
    1,822.50/2,821.08 = 2,821.08/x
  3. Step 3: Cross multiply
    1,822.50x = 2,821.08 × 2,821.08
  4. Step 4: Simplify right side
    1,822.50x = 7,958,481.79
  5. Step 5: Solve for x
    x = 7,958,481.79/1,822.50
  6. Step 6: Final answer
    x = 4,366.79

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.