Home / 3,940.70-5,912.08-2,298.64

Finding the Fourth Proportional to 3,940.70, 5,912.08 and 2,298.64

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Solution

The fourth proportional to 3,940.70, 5,912.08 and 2,298.64 is: 3,448.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.70 : 5,912.08 = 2,298.64 : x
  2. Step 2: Convert to fraction form
    3,940.70/5,912.08 = 2,298.64/x
  3. Step 3: Cross multiply
    3,940.70x = 5,912.08 × 2,298.64
  4. Step 4: Simplify right side
    3,940.70x = 13,589,743.57
  5. Step 5: Solve for x
    x = 13,589,743.57/3,940.70
  6. Step 6: Final answer
    x = 3,448.56

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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.