Home / 3,961.70-5,942.69-1,880.64

Finding the Fourth Proportional to 3,961.70, 5,942.69 and 1,880.64

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Solution

The fourth proportional to 3,961.70, 5,942.69 and 1,880.64 is: 2,821.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961.70 : 5,942.69 = 1,880.64 : x
  2. Step 2: Convert to fraction form
    3,961.70/5,942.69 = 1,880.64/x
  3. Step 3: Cross multiply
    3,961.70x = 5,942.69 × 1,880.64
  4. Step 4: Simplify right side
    3,961.70x = 11,176,046.46
  5. Step 5: Solve for x
    x = 11,176,046.46/3,961.70
  6. Step 6: Final answer
    x = 2,821.02

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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.