Home / 2,814.86-4,222.30-1,083.90

Finding the Fourth Proportional to 2,814.86, 4,222.30 and 1,083.90

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Solution

The fourth proportional to 2,814.86, 4,222.30 and 1,083.90 is: 1,625.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.86 : 4,222.30 = 1,083.90 : x
  2. Step 2: Convert to fraction form
    2,814.86/4,222.30 = 1,083.90/x
  3. Step 3: Cross multiply
    2,814.86x = 4,222.30 × 1,083.90
  4. Step 4: Simplify right side
    2,814.86x = 4,576,550.97
  5. Step 5: Solve for x
    x = 4,576,550.97/2,814.86
  6. Step 6: Final answer
    x = 1,625.85

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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.