Home / 1,970.80-2,721.44-1,273.36

Finding the Fourth Proportional to 1,970.80, 2,721.44 and 1,273.36

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Solution

The fourth proportional to 1,970.80, 2,721.44 and 1,273.36 is: 1,758.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970.80 : 2,721.44 = 1,273.36 : x
  2. Step 2: Convert to fraction form
    1,970.80/2,721.44 = 1,273.36/x
  3. Step 3: Cross multiply
    1,970.80x = 2,721.44 × 1,273.36
  4. Step 4: Simplify right side
    1,970.80x = 3,465,372.84
  5. Step 5: Solve for x
    x = 3,465,372.84/1,970.80
  6. Step 6: Final answer
    x = 1,758.36

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