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Finding the Fourth Proportional to 1,939.71, 2,676.60 and 1,153.62

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Solution

The fourth proportional to 1,939.71, 2,676.60 and 1,153.62 is: 1,591.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939.71 : 2,676.60 = 1,153.62 : x
  2. Step 2: Convert to fraction form
    1,939.71/2,676.60 = 1,153.62/x
  3. Step 3: Cross multiply
    1,939.71x = 2,676.60 × 1,153.62
  4. Step 4: Simplify right side
    1,939.71x = 3,087,779.29
  5. Step 5: Solve for x
    x = 3,087,779.29/1,939.71
  6. Step 6: Final answer
    x = 1,591.88

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