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Finding the Fourth Proportional to 3,299.92, 4,931.62 and 2,957.28

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Solution

The fourth proportional to 3,299.92, 4,931.62 and 2,957.28 is: 4,419.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,299.92 : 4,931.62 = 2,957.28 : x
  2. Step 2: Convert to fraction form
    3,299.92/4,931.62 = 2,957.28/x
  3. Step 3: Cross multiply
    3,299.92x = 4,931.62 × 2,957.28
  4. Step 4: Simplify right side
    3,299.92x = 14,584,181.19
  5. Step 5: Solve for x
    x = 14,584,181.19/3,299.92
  6. Step 6: Final answer
    x = 4,419.56

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