Home / 1,983.80-2,736.73-1,394.68

Finding the Fourth Proportional to 1,983.80, 2,736.73 and 1,394.68

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Solution

The fourth proportional to 1,983.80, 2,736.73 and 1,394.68 is: 1,924.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983.80 : 2,736.73 = 1,394.68 : x
  2. Step 2: Convert to fraction form
    1,983.80/2,736.73 = 1,394.68/x
  3. Step 3: Cross multiply
    1,983.80x = 2,736.73 × 1,394.68
  4. Step 4: Simplify right side
    1,983.80x = 3,816,862.60
  5. Step 5: Solve for x
    x = 3,816,862.60/1,983.80
  6. Step 6: Final answer
    x = 1,924.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.