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Finding the Third Proportional to 1,949.22 and 3,017.80

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Solution

The third proportional to 1,949.22 and 3,017.80 is: 4,672.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,949.22 : 3,017.80 = 3,017.80 : x
  2. Step 2: Convert to fraction form
    1,949.22/3,017.80 = 3,017.80/x
  3. Step 3: Cross multiply
    1,949.22x = 3,017.80 × 3,017.80
  4. Step 4: Simplify right side
    1,949.22x = 9,107,139.24
  5. Step 5: Solve for x
    x = 9,107,139.24/1,949.22
  6. Step 6: Final answer
    x = 4,672.20

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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.