Home / 2,280.31-3,421.37-1,125.25

Finding the Fourth Proportional to 2,280.31, 3,421.37 and 1,125.25

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Solution

The fourth proportional to 2,280.31, 3,421.37 and 1,125.25 is: 1,688.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.31 : 3,421.37 = 1,125.25 : x
  2. Step 2: Convert to fraction form
    2,280.31/3,421.37 = 1,125.25/x
  3. Step 3: Cross multiply
    2,280.31x = 3,421.37 × 1,125.25
  4. Step 4: Simplify right side
    2,280.31x = 3,849,896.59
  5. Step 5: Solve for x
    x = 3,849,896.59/2,280.31
  6. Step 6: Final answer
    x = 1,688.32

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