Home / 3,721.05-5,581.19-1,871.41

Finding the Fourth Proportional to 3,721.05, 5,581.19 and 1,871.41

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Solution

The fourth proportional to 3,721.05, 5,581.19 and 1,871.41 is: 2,806.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,721.05 : 5,581.19 = 1,871.41 : x
  2. Step 2: Convert to fraction form
    3,721.05/5,581.19 = 1,871.41/x
  3. Step 3: Cross multiply
    3,721.05x = 5,581.19 × 1,871.41
  4. Step 4: Simplify right side
    3,721.05x = 10,444,694.78
  5. Step 5: Solve for x
    x = 10,444,694.78/3,721.05
  6. Step 6: Final answer
    x = 2,806.92

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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.