Home / 1,987.27-2,981.36-1,013.14

Finding the Fourth Proportional to 1,987.27, 2,981.36 and 1,013.14

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Solution

The fourth proportional to 1,987.27, 2,981.36 and 1,013.14 is: 1,519.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987.27 : 2,981.36 = 1,013.14 : x
  2. Step 2: Convert to fraction form
    1,987.27/2,981.36 = 1,013.14/x
  3. Step 3: Cross multiply
    1,987.27x = 2,981.36 × 1,013.14
  4. Step 4: Simplify right side
    1,987.27x = 3,020,541.33
  5. Step 5: Solve for x
    x = 3,020,541.33/1,987.27
  6. Step 6: Final answer
    x = 1,519.95

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