Home / 2,111.44-3,168.52-1,138.22

Finding the Fourth Proportional to 2,111.44, 3,168.52 and 1,138.22

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Solution

The fourth proportional to 2,111.44, 3,168.52 and 1,138.22 is: 1,708.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,111.44 : 3,168.52 = 1,138.22 : x
  2. Step 2: Convert to fraction form
    2,111.44/3,168.52 = 1,138.22/x
  3. Step 3: Cross multiply
    2,111.44x = 3,168.52 × 1,138.22
  4. Step 4: Simplify right side
    2,111.44x = 3,606,472.83
  5. Step 5: Solve for x
    x = 3,606,472.83/2,111.44
  6. Step 6: Final answer
    x = 1,708.06

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