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Finding the Third Proportional to 1,782 and 2,754

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Solution

The third proportional to 1,782 and 2,754 is: 4,256.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,782 : 2,754 = 2,754 : x
  2. Step 2: Convert to fraction form
    1,782/2,754 = 2,754/x
  3. Step 3: Cross multiply
    1,782x = 2,754 × 2,754
  4. Step 4: Simplify right side
    1,782x = 7,584,516
  5. Step 5: Solve for x
    x = 7,584,516/1,782
  6. Step 6: Final answer
    x = 4,256.18

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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.