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Finding the Third Proportional to 1,777.78 and 2,265.05

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Solution

The third proportional to 1,777.78 and 2,265.05 is: 2,885.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.78 : 2,265.05 = 2,265.05 : x
  2. Step 2: Convert to fraction form
    1,777.78/2,265.05 = 2,265.05/x
  3. Step 3: Cross multiply
    1,777.78x = 2,265.05 × 2,265.05
  4. Step 4: Simplify right side
    1,777.78x = 5,130,437.35
  5. Step 5: Solve for x
    x = 5,130,437.35/1,777.78
  6. Step 6: Final answer
    x = 2,885.87

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Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.