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Finding the Third Proportional to 1,692.75 and 2,806.13

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Solution

The third proportional to 1,692.75 and 2,806.13 is: 4,651.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,692.75 : 2,806.13 = 2,806.13 : x
  2. Step 2: Convert to fraction form
    1,692.75/2,806.13 = 2,806.13/x
  3. Step 3: Cross multiply
    1,692.75x = 2,806.13 × 2,806.13
  4. Step 4: Simplify right side
    1,692.75x = 7,874,337.52
  5. Step 5: Solve for x
    x = 7,874,337.52/1,692.75
  6. Step 6: Final answer
    x = 4,651.80

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.