Home / 2,778.31-4,168.82-1,135.32

Finding the Fourth Proportional to 2,778.31, 4,168.82 and 1,135.32

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Solution

The fourth proportional to 2,778.31, 4,168.82 and 1,135.32 is: 1,703.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.31 : 4,168.82 = 1,135.32 : x
  2. Step 2: Convert to fraction form
    2,778.31/4,168.82 = 1,135.32/x
  3. Step 3: Cross multiply
    2,778.31x = 4,168.82 × 1,135.32
  4. Step 4: Simplify right side
    2,778.31x = 4,732,944.72
  5. Step 5: Solve for x
    x = 4,732,944.72/2,778.31
  6. Step 6: Final answer
    x = 1,703.53

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