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Finding the Third Proportional to 4,228.50 and 8,892

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Solution

The third proportional to 4,228.50 and 8,892 is: 18,698.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,228.50 : 8,892 = 8,892 : x
  2. Step 2: Convert to fraction form
    4,228.50/8,892 = 8,892/x
  3. Step 3: Cross multiply
    4,228.50x = 8,892 × 8,892
  4. Step 4: Simplify right side
    4,228.50x = 79,067,664
  5. Step 5: Solve for x
    x = 79,067,664/4,228.50
  6. Step 6: Final answer
    x = 18,698.75

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.