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Finding the Third Proportional to 3,519 and 4,159

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Solution

The third proportional to 3,519 and 4,159 is: 4,915.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519 : 4,159 = 4,159 : x
  2. Step 2: Convert to fraction form
    3,519/4,159 = 4,159/x
  3. Step 3: Cross multiply
    3,519x = 4,159 × 4,159
  4. Step 4: Simplify right side
    3,519x = 17,297,281
  5. Step 5: Solve for x
    x = 17,297,281/3,519
  6. Step 6: Final answer
    x = 4,915.40

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.