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Finding the Fourth Proportional to 7,779.71, 11,667.48 and 2,849.38

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Solution

The fourth proportional to 7,779.71, 11,667.48 and 2,849.38 is: 4,273.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.71 : 11,667.48 = 2,849.38 : x
  2. Step 2: Convert to fraction form
    7,779.71/11,667.48 = 2,849.38/x
  3. Step 3: Cross multiply
    7,779.71x = 11,667.48 × 2,849.38
  4. Step 4: Simplify right side
    7,779.71x = 33,245,044.31
  5. Step 5: Solve for x
    x = 33,245,044.31/7,779.71
  6. Step 6: Final answer
    x = 4,273.30

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