Home / 2,222.25-3,331.08-836.61

Finding the Fourth Proportional to 2,222.25, 3,331.08 and 836.61

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Solution

The fourth proportional to 2,222.25, 3,331.08 and 836.61 is: 1,254.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.25 : 3,331.08 = 836.61 : x
  2. Step 2: Convert to fraction form
    2,222.25/3,331.08 = 836.61/x
  3. Step 3: Cross multiply
    2,222.25x = 3,331.08 × 836.61
  4. Step 4: Simplify right side
    2,222.25x = 2,786,814.84
  5. Step 5: Solve for x
    x = 2,786,814.84/2,222.25
  6. Step 6: Final answer
    x = 1,254.05

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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.