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Finding the Third Proportional to 5,819 and 6,431

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Solution

The third proportional to 5,819 and 6,431 is: 7,107.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,819 : 6,431 = 6,431 : x
  2. Step 2: Convert to fraction form
    5,819/6,431 = 6,431/x
  3. Step 3: Cross multiply
    5,819x = 6,431 × 6,431
  4. Step 4: Simplify right side
    5,819x = 41,357,761
  5. Step 5: Solve for x
    x = 41,357,761/5,819
  6. Step 6: Final answer
    x = 7,107.37

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.