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Finding the Third Proportional to 3,546 and 3,789

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Solution

The third proportional to 3,546 and 3,789 is: 4,048.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,546 : 3,789 = 3,789 : x
  2. Step 2: Convert to fraction form
    3,546/3,789 = 3,789/x
  3. Step 3: Cross multiply
    3,546x = 3,789 × 3,789
  4. Step 4: Simplify right side
    3,546x = 14,356,521
  5. Step 5: Solve for x
    x = 14,356,521/3,546
  6. Step 6: Final answer
    x = 4,048.65

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Why These Related Problems?

These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.