Home / 2,922.87-4,379.82-1,984.61

Finding the Fourth Proportional to 2,922.87, 4,379.82 and 1,984.61

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Solution

The fourth proportional to 2,922.87, 4,379.82 and 1,984.61 is: 2,973.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,922.87 : 4,379.82 = 1,984.61 : x
  2. Step 2: Convert to fraction form
    2,922.87/4,379.82 = 1,984.61/x
  3. Step 3: Cross multiply
    2,922.87x = 4,379.82 × 1,984.61
  4. Step 4: Simplify right side
    2,922.87x = 8,692,234.57
  5. Step 5: Solve for x
    x = 8,692,234.57/2,922.87
  6. Step 6: Final answer
    x = 2,973.87

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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.