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Finding the Fourth Proportional to 4,981.76, 7,469.40 and 2,057.12

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Solution

The fourth proportional to 4,981.76, 7,469.40 and 2,057.12 is: 3,084.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.76 : 7,469.40 = 2,057.12 : x
  2. Step 2: Convert to fraction form
    4,981.76/7,469.40 = 2,057.12/x
  3. Step 3: Cross multiply
    4,981.76x = 7,469.40 × 2,057.12
  4. Step 4: Simplify right side
    4,981.76x = 15,365,452.13
  5. Step 5: Solve for x
    x = 15,365,452.13/4,981.76
  6. Step 6: Final answer
    x = 3,084.34

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