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Finding the Third Proportional to 3,894 and 5,477

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Solution

The third proportional to 3,894 and 5,477 is: 7,703.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894 : 5,477 = 5,477 : x
  2. Step 2: Convert to fraction form
    3,894/5,477 = 5,477/x
  3. Step 3: Cross multiply
    3,894x = 5,477 × 5,477
  4. Step 4: Simplify right side
    3,894x = 29,997,529
  5. Step 5: Solve for x
    x = 29,997,529/3,894
  6. Step 6: Final answer
    x = 7,703.53

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.