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Finding the Third Proportional to 4,380 and 5,808

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Solution

The third proportional to 4,380 and 5,808 is: 7,701.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,380 : 5,808 = 5,808 : x
  2. Step 2: Convert to fraction form
    4,380/5,808 = 5,808/x
  3. Step 3: Cross multiply
    4,380x = 5,808 × 5,808
  4. Step 4: Simplify right side
    4,380x = 33,732,864
  5. Step 5: Solve for x
    x = 33,732,864/4,380
  6. Step 6: Final answer
    x = 7,701.57

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.