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Finding the Fourth Proportional to 3,405.85, 4,700.37 and 1,914.13

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Solution

The fourth proportional to 3,405.85, 4,700.37 and 1,914.13 is: 2,641.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.85 : 4,700.37 = 1,914.13 : x
  2. Step 2: Convert to fraction form
    3,405.85/4,700.37 = 1,914.13/x
  3. Step 3: Cross multiply
    3,405.85x = 4,700.37 × 1,914.13
  4. Step 4: Simplify right side
    3,405.85x = 8,997,107.48
  5. Step 5: Solve for x
    x = 8,997,107.48/3,405.85
  6. Step 6: Final answer
    x = 2,641.66

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