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Finding the Third Proportional to 1,958 and 5,147

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Solution

The third proportional to 1,958 and 5,147 is: 13,529.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958 : 5,147 = 5,147 : x
  2. Step 2: Convert to fraction form
    1,958/5,147 = 5,147/x
  3. Step 3: Cross multiply
    1,958x = 5,147 × 5,147
  4. Step 4: Simplify right side
    1,958x = 26,491,609
  5. Step 5: Solve for x
    x = 26,491,609/1,958
  6. Step 6: Final answer
    x = 13,529.93

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Why These Related Problems?

These problems maintain the same ratio (2.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.