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Finding the Third Proportional to 1,247.06 and 1,692.84

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Solution

The third proportional to 1,247.06 and 1,692.84 is: 2,297.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247.06 : 1,692.84 = 1,692.84 : x
  2. Step 2: Convert to fraction form
    1,247.06/1,692.84 = 1,692.84/x
  3. Step 3: Cross multiply
    1,247.06x = 1,692.84 × 1,692.84
  4. Step 4: Simplify right side
    1,247.06x = 2,865,719.96
  5. Step 5: Solve for x
    x = 2,865,719.96/1,247.06
  6. Step 6: Final answer
    x = 2,297.98

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.