Home / 1,828.11-2,741.35-1,280.55

Finding the Fourth Proportional to 1,828.11, 2,741.35 and 1,280.55

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Solution

The fourth proportional to 1,828.11, 2,741.35 and 1,280.55 is: 1,920.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,828.11 : 2,741.35 = 1,280.55 : x
  2. Step 2: Convert to fraction form
    1,828.11/2,741.35 = 1,280.55/x
  3. Step 3: Cross multiply
    1,828.11x = 2,741.35 × 1,280.55
  4. Step 4: Simplify right side
    1,828.11x = 3,510,435.74
  5. Step 5: Solve for x
    x = 3,510,435.74/1,828.11
  6. Step 6: Final answer
    x = 1,920.25

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