Home / 2,231.33-3,079.40-1,236.92

Finding the Fourth Proportional to 2,231.33, 3,079.40 and 1,236.92

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Solution

The fourth proportional to 2,231.33, 3,079.40 and 1,236.92 is: 1,707.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.33 : 3,079.40 = 1,236.92 : x
  2. Step 2: Convert to fraction form
    2,231.33/3,079.40 = 1,236.92/x
  3. Step 3: Cross multiply
    2,231.33x = 3,079.40 × 1,236.92
  4. Step 4: Simplify right side
    2,231.33x = 3,808,949.87
  5. Step 5: Solve for x
    x = 3,808,949.87/2,231.33
  6. Step 6: Final answer
    x = 1,707.03

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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.