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Finding the Fourth Proportional to 1,936.42, 2,902.01 and 1,242.73

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Solution

The fourth proportional to 1,936.42, 2,902.01 and 1,242.73 is: 1,862.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936.42 : 2,902.01 = 1,242.73 : x
  2. Step 2: Convert to fraction form
    1,936.42/2,902.01 = 1,242.73/x
  3. Step 3: Cross multiply
    1,936.42x = 2,902.01 × 1,242.73
  4. Step 4: Simplify right side
    1,936.42x = 3,606,414.89
  5. Step 5: Solve for x
    x = 3,606,414.89/1,936.42
  6. Step 6: Final answer
    x = 1,862.41

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