Home / 3,131.43-4,324.61-2,709.77

Finding the Fourth Proportional to 3,131.43, 4,324.61 and 2,709.77

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Solution

The fourth proportional to 3,131.43, 4,324.61 and 2,709.77 is: 3,742.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131.43 : 4,324.61 = 2,709.77 : x
  2. Step 2: Convert to fraction form
    3,131.43/4,324.61 = 2,709.77/x
  3. Step 3: Cross multiply
    3,131.43x = 4,324.61 × 2,709.77
  4. Step 4: Simplify right side
    3,131.43x = 11,718,663.27
  5. Step 5: Solve for x
    x = 11,718,663.27/3,131.43
  6. Step 6: Final answer
    x = 3,742.27

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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.