Home / 2,141.22-3,212.04-581.31

Finding the Fourth Proportional to 2,141.22, 3,212.04 and 581.31

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Solution

The fourth proportional to 2,141.22, 3,212.04 and 581.31 is: 872.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,141.22 : 3,212.04 = 581.31 : x
  2. Step 2: Convert to fraction form
    2,141.22/3,212.04 = 581.31/x
  3. Step 3: Cross multiply
    2,141.22x = 3,212.04 × 581.31
  4. Step 4: Simplify right side
    2,141.22x = 1,867,190.97
  5. Step 5: Solve for x
    x = 1,867,190.97/2,141.22
  6. Step 6: Final answer
    x = 872.02

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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.