Home / 3,311.94-4,961.76-1,664.51

Finding the Fourth Proportional to 3,311.94, 4,961.76 and 1,664.51

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Solution

The fourth proportional to 3,311.94, 4,961.76 and 1,664.51 is: 2,493.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.94 : 4,961.76 = 1,664.51 : x
  2. Step 2: Convert to fraction form
    3,311.94/4,961.76 = 1,664.51/x
  3. Step 3: Cross multiply
    3,311.94x = 4,961.76 × 1,664.51
  4. Step 4: Simplify right side
    3,311.94x = 8,258,902.97
  5. Step 5: Solve for x
    x = 8,258,902.97/3,311.94
  6. Step 6: Final answer
    x = 2,493.68

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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.