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Finding the Third Proportional to 4,380 and 4,836

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Solution

The third proportional to 4,380 and 4,836 is: 5,339.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,380 : 4,836 = 4,836 : x
  2. Step 2: Convert to fraction form
    4,380/4,836 = 4,836/x
  3. Step 3: Cross multiply
    4,380x = 4,836 × 4,836
  4. Step 4: Simplify right side
    4,380x = 23,386,896
  5. Step 5: Solve for x
    x = 23,386,896/4,380
  6. Step 6: Final answer
    x = 5,339.47

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.