Home / 7,977.68-11,966.97-2,431.20

Finding the Fourth Proportional to 7,977.68, 11,966.97 and 2,431.20

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Solution

The fourth proportional to 7,977.68, 11,966.97 and 2,431.20 is: 3,646.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.68 : 11,966.97 = 2,431.20 : x
  2. Step 2: Convert to fraction form
    7,977.68/11,966.97 = 2,431.20/x
  3. Step 3: Cross multiply
    7,977.68x = 11,966.97 × 2,431.20
  4. Step 4: Simplify right side
    7,977.68x = 29,094,097.46
  5. Step 5: Solve for x
    x = 29,094,097.46/7,977.68
  6. Step 6: Final answer
    x = 3,646.94

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