Home / 2,231.28-3,079.19-1,346.91

Finding the Fourth Proportional to 2,231.28, 3,079.19 and 1,346.91

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Solution

The fourth proportional to 2,231.28, 3,079.19 and 1,346.91 is: 1,858.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.28 : 3,079.19 = 1,346.91 : x
  2. Step 2: Convert to fraction form
    2,231.28/3,079.19 = 1,346.91/x
  3. Step 3: Cross multiply
    2,231.28x = 3,079.19 × 1,346.91
  4. Step 4: Simplify right side
    2,231.28x = 4,147,391.80
  5. Step 5: Solve for x
    x = 4,147,391.80/2,231.28
  6. Step 6: Final answer
    x = 1,858.75

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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.