Home / 3,670.75-5,067.60-2,872.39

Finding the Fourth Proportional to 3,670.75, 5,067.60 and 2,872.39

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Solution

The fourth proportional to 3,670.75, 5,067.60 and 2,872.39 is: 3,965.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.75 : 5,067.60 = 2,872.39 : x
  2. Step 2: Convert to fraction form
    3,670.75/5,067.60 = 2,872.39/x
  3. Step 3: Cross multiply
    3,670.75x = 5,067.60 × 2,872.39
  4. Step 4: Simplify right side
    3,670.75x = 14,556,123.56
  5. Step 5: Solve for x
    x = 14,556,123.56/3,670.75
  6. Step 6: Final answer
    x = 3,965.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.