Home / 3,845.82-5,765.27-1,380.06

Finding the Fourth Proportional to 3,845.82, 5,765.27 and 1,380.06

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Solution

The fourth proportional to 3,845.82, 5,765.27 and 1,380.06 is: 2,068.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,845.82 : 5,765.27 = 1,380.06 : x
  2. Step 2: Convert to fraction form
    3,845.82/5,765.27 = 1,380.06/x
  3. Step 3: Cross multiply
    3,845.82x = 5,765.27 × 1,380.06
  4. Step 4: Simplify right side
    3,845.82x = 7,956,418.52
  5. Step 5: Solve for x
    x = 7,956,418.52/3,845.82
  6. Step 6: Final answer
    x = 2,068.85

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