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Finding the Third Proportional to 4,085 and 4,511

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Solution

The third proportional to 4,085 and 4,511 is: 4,981.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085 : 4,511 = 4,511 : x
  2. Step 2: Convert to fraction form
    4,085/4,511 = 4,511/x
  3. Step 3: Cross multiply
    4,085x = 4,511 × 4,511
  4. Step 4: Simplify right side
    4,085x = 20,349,121
  5. Step 5: Solve for x
    x = 20,349,121/4,085
  6. Step 6: Final answer
    x = 4,981.42

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.