Home / 3,687.58-5,531.50-1,222.61

Finding the Fourth Proportional to 3,687.58, 5,531.50 and 1,222.61

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Solution

The fourth proportional to 3,687.58, 5,531.50 and 1,222.61 is: 1,833.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.58 : 5,531.50 = 1,222.61 : x
  2. Step 2: Convert to fraction form
    3,687.58/5,531.50 = 1,222.61/x
  3. Step 3: Cross multiply
    3,687.58x = 5,531.50 × 1,222.61
  4. Step 4: Simplify right side
    3,687.58x = 6,762,867.22
  5. Step 5: Solve for x
    x = 6,762,867.22/3,687.58
  6. Step 6: Final answer
    x = 1,833.96

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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.