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Finding the Fourth Proportional to 3,398.52, 5,097.60 and 1,665.84

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Solution

The fourth proportional to 3,398.52, 5,097.60 and 1,665.84 is: 2,498.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,398.52 : 5,097.60 = 1,665.84 : x
  2. Step 2: Convert to fraction form
    3,398.52/5,097.60 = 1,665.84/x
  3. Step 3: Cross multiply
    3,398.52x = 5,097.60 × 1,665.84
  4. Step 4: Simplify right side
    3,398.52x = 8,491,785.98
  5. Step 5: Solve for x
    x = 8,491,785.98/3,398.52
  6. Step 6: Final answer
    x = 2,498.67

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