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Finding the Fourth Proportional to 3,960.45, 5,939.78 and 1,495.22

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Solution

The fourth proportional to 3,960.45, 5,939.78 and 1,495.22 is: 2,242.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.45 : 5,939.78 = 1,495.22 : x
  2. Step 2: Convert to fraction form
    3,960.45/5,939.78 = 1,495.22/x
  3. Step 3: Cross multiply
    3,960.45x = 5,939.78 × 1,495.22
  4. Step 4: Simplify right side
    3,960.45x = 8,881,240.68
  5. Step 5: Solve for x
    x = 8,881,240.68/3,960.45
  6. Step 6: Final answer
    x = 2,242.48

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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.