Home / 3,325.86-4,989.92-2,091.82

Finding the Fourth Proportional to 3,325.86, 4,989.92 and 2,091.82

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Solution

The fourth proportional to 3,325.86, 4,989.92 and 2,091.82 is: 3,138.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,325.86 : 4,989.92 = 2,091.82 : x
  2. Step 2: Convert to fraction form
    3,325.86/4,989.92 = 2,091.82/x
  3. Step 3: Cross multiply
    3,325.86x = 4,989.92 × 2,091.82
  4. Step 4: Simplify right side
    3,325.86x = 10,438,014.45
  5. Step 5: Solve for x
    x = 10,438,014.45/3,325.86
  6. Step 6: Final answer
    x = 3,138.44

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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.