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Finding the Third Proportional to 999.19 and 2,180.63

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Solution

The third proportional to 999.19 and 2,180.63 is: 4,758.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    999.19 : 2,180.63 = 2,180.63 : x
  2. Step 2: Convert to fraction form
    999.19/2,180.63 = 2,180.63/x
  3. Step 3: Cross multiply
    999.19x = 2,180.63 × 2,180.63
  4. Step 4: Simplify right side
    999.19x = 4,755,125.39
  5. Step 5: Solve for x
    x = 4,755,125.39/999.19
  6. Step 6: Final answer
    x = 4,758.99

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.