Home / 8,222.22-12,331.71-2,379.42

Finding the Fourth Proportional to 8,222.22, 12,331.71 and 2,379.42

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Solution

The fourth proportional to 8,222.22, 12,331.71 and 2,379.42 is: 3,568.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,222.22 : 12,331.71 = 2,379.42 : x
  2. Step 2: Convert to fraction form
    8,222.22/12,331.71 = 2,379.42/x
  3. Step 3: Cross multiply
    8,222.22x = 12,331.71 × 2,379.42
  4. Step 4: Simplify right side
    8,222.22x = 29,342,317.41
  5. Step 5: Solve for x
    x = 29,342,317.41/8,222.22
  6. Step 6: Final answer
    x = 3,568.66

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1.5x scale

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.