Home / 1,933.82-2,667.38-1,620.66

Finding the Fourth Proportional to 1,933.82, 2,667.38 and 1,620.66

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Solution

The fourth proportional to 1,933.82, 2,667.38 and 1,620.66 is: 2,235.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933.82 : 2,667.38 = 1,620.66 : x
  2. Step 2: Convert to fraction form
    1,933.82/2,667.38 = 1,620.66/x
  3. Step 3: Cross multiply
    1,933.82x = 2,667.38 × 1,620.66
  4. Step 4: Simplify right side
    1,933.82x = 4,322,912.08
  5. Step 5: Solve for x
    x = 4,322,912.08/1,933.82
  6. Step 6: Final answer
    x = 2,235.42

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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.