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Finding the Third Proportional to 1,777.50 and 2,616.38

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Solution

The third proportional to 1,777.50 and 2,616.38 is: 3,851.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.50 : 2,616.38 = 2,616.38 : x
  2. Step 2: Convert to fraction form
    1,777.50/2,616.38 = 2,616.38/x
  3. Step 3: Cross multiply
    1,777.50x = 2,616.38 × 2,616.38
  4. Step 4: Simplify right side
    1,777.50x = 6,845,418.14
  5. Step 5: Solve for x
    x = 6,845,418.14/1,777.50
  6. Step 6: Final answer
    x = 3,851.15

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.