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Finding the Fourth Proportional to 4,379.82, 6,563.97 and 1,781.34

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Solution

The fourth proportional to 4,379.82, 6,563.97 and 1,781.34 is: 2,669.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,379.82 : 6,563.97 = 1,781.34 : x
  2. Step 2: Convert to fraction form
    4,379.82/6,563.97 = 1,781.34/x
  3. Step 3: Cross multiply
    4,379.82x = 6,563.97 × 1,781.34
  4. Step 4: Simplify right side
    4,379.82x = 11,692,662.32
  5. Step 5: Solve for x
    x = 11,692,662.32/4,379.82
  6. Step 6: Final answer
    x = 2,669.67

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