Home / 2,821.98-4,230.66-1,179.72

Finding the Fourth Proportional to 2,821.98, 4,230.66 and 1,179.72

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Solution

The fourth proportional to 2,821.98, 4,230.66 and 1,179.72 is: 1,768.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.98 : 4,230.66 = 1,179.72 : x
  2. Step 2: Convert to fraction form
    2,821.98/4,230.66 = 1,179.72/x
  3. Step 3: Cross multiply
    2,821.98x = 4,230.66 × 1,179.72
  4. Step 4: Simplify right side
    2,821.98x = 4,990,994.22
  5. Step 5: Solve for x
    x = 4,990,994.22/2,821.98
  6. Step 6: Final answer
    x = 1,768.61

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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.