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Finding the Fourth Proportional to 3,520.08, 4,857.72 and 1,948.20

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Solution

The fourth proportional to 3,520.08, 4,857.72 and 1,948.20 is: 2,688.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.08 : 4,857.72 = 1,948.20 : x
  2. Step 2: Convert to fraction form
    3,520.08/4,857.72 = 1,948.20/x
  3. Step 3: Cross multiply
    3,520.08x = 4,857.72 × 1,948.20
  4. Step 4: Simplify right side
    3,520.08x = 9,463,810.10
  5. Step 5: Solve for x
    x = 9,463,810.10/3,520.08
  6. Step 6: Final answer
    x = 2,688.52

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