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Finding the Fourth Proportional to 5,198.02, 7,800.12 and 1,913.42

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Solution

The fourth proportional to 5,198.02, 7,800.12 and 1,913.42 is: 2,871.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,198.02 : 7,800.12 = 1,913.42 : x
  2. Step 2: Convert to fraction form
    5,198.02/7,800.12 = 1,913.42/x
  3. Step 3: Cross multiply
    5,198.02x = 7,800.12 × 1,913.42
  4. Step 4: Simplify right side
    5,198.02x = 14,924,930.49
  5. Step 5: Solve for x
    x = 14,924,930.49/5,198.02
  6. Step 6: Final answer
    x = 2,871.27

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