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Finding the Third Proportional to 1,911 and 3,073

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Solution

The third proportional to 1,911 and 3,073 is: 4,941.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911 : 3,073 = 3,073 : x
  2. Step 2: Convert to fraction form
    1,911/3,073 = 3,073/x
  3. Step 3: Cross multiply
    1,911x = 3,073 × 3,073
  4. Step 4: Simplify right side
    1,911x = 9,443,329
  5. Step 5: Solve for x
    x = 9,443,329/1,911
  6. Step 6: Final answer
    x = 4,941.56

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.