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Finding the Third Proportional to 4,125 and 4,800

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Solution

The third proportional to 4,125 and 4,800 is: 5,585.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,125 : 4,800 = 4,800 : x
  2. Step 2: Convert to fraction form
    4,125/4,800 = 4,800/x
  3. Step 3: Cross multiply
    4,125x = 4,800 × 4,800
  4. Step 4: Simplify right side
    4,125x = 23,040,000
  5. Step 5: Solve for x
    x = 23,040,000/4,125
  6. Step 6: Final answer
    x = 5,585.45

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Why These Related Problems?

These problems maintain the same ratio (1.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.