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Finding the Fourth Proportional to 5,180.34, 7,770.64 and 3,949.94

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Solution

The fourth proportional to 5,180.34, 7,770.64 and 3,949.94 is: 5,925.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.34 : 7,770.64 = 3,949.94 : x
  2. Step 2: Convert to fraction form
    5,180.34/7,770.64 = 3,949.94/x
  3. Step 3: Cross multiply
    5,180.34x = 7,770.64 × 3,949.94
  4. Step 4: Simplify right side
    5,180.34x = 30,693,561.76
  5. Step 5: Solve for x
    x = 30,693,561.76/5,180.34
  6. Step 6: Final answer
    x = 5,925.01

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