Home / 1,991.07-2,983.19-1,067.06

Finding the Fourth Proportional to 1,991.07, 2,983.19 and 1,067.06

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Solution

The fourth proportional to 1,991.07, 2,983.19 and 1,067.06 is: 1,598.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991.07 : 2,983.19 = 1,067.06 : x
  2. Step 2: Convert to fraction form
    1,991.07/2,983.19 = 1,067.06/x
  3. Step 3: Cross multiply
    1,991.07x = 2,983.19 × 1,067.06
  4. Step 4: Simplify right side
    1,991.07x = 3,183,244.84
  5. Step 5: Solve for x
    x = 3,183,244.84/1,991.07
  6. Step 6: Final answer
    x = 1,598.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.