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Finding the Third Proportional to 5,388 and 6,188

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Solution

The third proportional to 5,388 and 6,188 is: 7,106.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388 : 6,188 = 6,188 : x
  2. Step 2: Convert to fraction form
    5,388/6,188 = 6,188/x
  3. Step 3: Cross multiply
    5,388x = 6,188 × 6,188
  4. Step 4: Simplify right side
    5,388x = 38,291,344
  5. Step 5: Solve for x
    x = 38,291,344/5,388
  6. Step 6: Final answer
    x = 7,106.78

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.