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Finding the Fourth Proportional to 3,947.34, 5,908.66 and 2,908.51

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Solution

The fourth proportional to 3,947.34, 5,908.66 and 2,908.51 is: 4,353.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947.34 : 5,908.66 = 2,908.51 : x
  2. Step 2: Convert to fraction form
    3,947.34/5,908.66 = 2,908.51/x
  3. Step 3: Cross multiply
    3,947.34x = 5,908.66 × 2,908.51
  4. Step 4: Simplify right side
    3,947.34x = 17,185,396.70
  5. Step 5: Solve for x
    x = 17,185,396.70/3,947.34
  6. Step 6: Final answer
    x = 4,353.67

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