Home / 2,631.69-3,947.54-1,807.46

Finding the Fourth Proportional to 2,631.69, 3,947.54 and 1,807.46

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Solution

The fourth proportional to 2,631.69, 3,947.54 and 1,807.46 is: 2,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.69 : 3,947.54 = 1,807.46 : x
  2. Step 2: Convert to fraction form
    2,631.69/3,947.54 = 1,807.46/x
  3. Step 3: Cross multiply
    2,631.69x = 3,947.54 × 1,807.46
  4. Step 4: Simplify right side
    2,631.69x = 7,135,028.88
  5. Step 5: Solve for x
    x = 7,135,028.88/2,631.69
  6. Step 6: Final answer
    x = 2,711.20

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