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Finding the Fourth Proportional to 3,940.04, 5,912.46 and 1,749.80

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Solution

The fourth proportional to 3,940.04, 5,912.46 and 1,749.80 is: 2,625.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.04 : 5,912.46 = 1,749.80 : x
  2. Step 2: Convert to fraction form
    3,940.04/5,912.46 = 1,749.80/x
  3. Step 3: Cross multiply
    3,940.04x = 5,912.46 × 1,749.80
  4. Step 4: Simplify right side
    3,940.04x = 10,345,622.51
  5. Step 5: Solve for x
    x = 10,345,622.51/3,940.04
  6. Step 6: Final answer
    x = 2,625.77

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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.