Home / 2,659.20-3,984.30-1,928.76

Finding the Fourth Proportional to 2,659.20, 3,984.30 and 1,928.76

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Solution

The fourth proportional to 2,659.20, 3,984.30 and 1,928.76 is: 2,889.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659.20 : 3,984.30 = 1,928.76 : x
  2. Step 2: Convert to fraction form
    2,659.20/3,984.30 = 1,928.76/x
  3. Step 3: Cross multiply
    2,659.20x = 3,984.30 × 1,928.76
  4. Step 4: Simplify right side
    2,659.20x = 7,684,758.47
  5. Step 5: Solve for x
    x = 7,684,758.47/2,659.20
  6. Step 6: Final answer
    x = 2,889.88

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