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Finding the Third Proportional to 1,215.75 and 1,877.44

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Solution

The third proportional to 1,215.75 and 1,877.44 is: 2,899.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215.75 : 1,877.44 = 1,877.44 : x
  2. Step 2: Convert to fraction form
    1,215.75/1,877.44 = 1,877.44/x
  3. Step 3: Cross multiply
    1,215.75x = 1,877.44 × 1,877.44
  4. Step 4: Simplify right side
    1,215.75x = 3,524,771.57
  5. Step 5: Solve for x
    x = 3,524,771.57/1,215.75
  6. Step 6: Final answer
    x = 2,899.26

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.