Home / 3,942.07-5,440.03-2,173.64

Finding the Fourth Proportional to 3,942.07, 5,440.03 and 2,173.64

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Solution

The fourth proportional to 3,942.07, 5,440.03 and 2,173.64 is: 2,999.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.07 : 5,440.03 = 2,173.64 : x
  2. Step 2: Convert to fraction form
    3,942.07/5,440.03 = 2,173.64/x
  3. Step 3: Cross multiply
    3,942.07x = 5,440.03 × 2,173.64
  4. Step 4: Simplify right side
    3,942.07x = 11,824,664.78
  5. Step 5: Solve for x
    x = 11,824,664.78/3,942.07
  6. Step 6: Final answer
    x = 2,999.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.