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Finding the Fourth Proportional to 3,692.78, 5,067.36 and 3,358.66

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Solution

The fourth proportional to 3,692.78, 5,067.36 and 3,358.66 is: 4,608.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,692.78 : 5,067.36 = 3,358.66 : x
  2. Step 2: Convert to fraction form
    3,692.78/5,067.36 = 3,358.66/x
  3. Step 3: Cross multiply
    3,692.78x = 5,067.36 × 3,358.66
  4. Step 4: Simplify right side
    3,692.78x = 17,019,539.34
  5. Step 5: Solve for x
    x = 17,019,539.34/3,692.78
  6. Step 6: Final answer
    x = 4,608.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.