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Finding the Fourth Proportional to 1,822.00, 2,730.37 and 781.73

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Solution

The fourth proportional to 1,822.00, 2,730.37 and 781.73 is: 1,171.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,822.00 : 2,730.37 = 781.73 : x
  2. Step 2: Convert to fraction form
    1,822.00/2,730.37 = 781.73/x
  3. Step 3: Cross multiply
    1,822.00x = 2,730.37 × 781.73
  4. Step 4: Simplify right side
    1,822.00x = 2,134,394.58
  5. Step 5: Solve for x
    x = 2,134,394.58/1,822.00
  6. Step 6: Final answer
    x = 1,171.46

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