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Finding the Third Proportional to 1,778 and 2,646

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Solution

The third proportional to 1,778 and 2,646 is: 3,937.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778 : 2,646 = 2,646 : x
  2. Step 2: Convert to fraction form
    1,778/2,646 = 2,646/x
  3. Step 3: Cross multiply
    1,778x = 2,646 × 2,646
  4. Step 4: Simplify right side
    1,778x = 7,001,316
  5. Step 5: Solve for x
    x = 7,001,316/1,778
  6. Step 6: Final answer
    x = 3,937.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.