Home / 2,822.86-4,234.30-1,091.90

Finding the Fourth Proportional to 2,822.86, 4,234.30 and 1,091.90

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Solution

The fourth proportional to 2,822.86, 4,234.30 and 1,091.90 is: 1,637.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,822.86 : 4,234.30 = 1,091.90 : x
  2. Step 2: Convert to fraction form
    2,822.86/4,234.30 = 1,091.90/x
  3. Step 3: Cross multiply
    2,822.86x = 4,234.30 × 1,091.90
  4. Step 4: Simplify right side
    2,822.86x = 4,623,432.17
  5. Step 5: Solve for x
    x = 4,623,432.17/2,822.86
  6. Step 6: Final answer
    x = 1,637.85

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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.