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Finding the Fourth Proportional to 1,978.13, 2,729.82 and 1,094.00

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Solution

The fourth proportional to 1,978.13, 2,729.82 and 1,094.00 is: 1,509.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978.13 : 2,729.82 = 1,094.00 : x
  2. Step 2: Convert to fraction form
    1,978.13/2,729.82 = 1,094.00/x
  3. Step 3: Cross multiply
    1,978.13x = 2,729.82 × 1,094.00
  4. Step 4: Simplify right side
    1,978.13x = 2,986,409.43
  5. Step 5: Solve for x
    x = 2,986,409.43/1,978.13
  6. Step 6: Final answer
    x = 1,509.72

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