Home / 2,212.50-3,319.17-826.81

Finding the Fourth Proportional to 2,212.50, 3,319.17 and 826.81

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Solution

The fourth proportional to 2,212.50, 3,319.17 and 826.81 is: 1,240.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.50 : 3,319.17 = 826.81 : x
  2. Step 2: Convert to fraction form
    2,212.50/3,319.17 = 826.81/x
  3. Step 3: Cross multiply
    2,212.50x = 3,319.17 × 826.81
  4. Step 4: Simplify right side
    2,212.50x = 2,744,322.95
  5. Step 5: Solve for x
    x = 2,744,322.95/2,212.50
  6. Step 6: Final answer
    x = 1,240.37

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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.