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Finding the Third Proportional to 2,811.38 and 4,302.28

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Solution

The third proportional to 2,811.38 and 4,302.28 is: 6,583.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.38 : 4,302.28 = 4,302.28 : x
  2. Step 2: Convert to fraction form
    2,811.38/4,302.28 = 4,302.28/x
  3. Step 3: Cross multiply
    2,811.38x = 4,302.28 × 4,302.28
  4. Step 4: Simplify right side
    2,811.38x = 18,509,623.95
  5. Step 5: Solve for x
    x = 18,509,623.95/2,811.38
  6. Step 6: Final answer
    x = 6,583.83

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.