Home / 3,942.39-5,440.33-2,174.03

Finding the Fourth Proportional to 3,942.39, 5,440.33 and 2,174.03

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Solution

The fourth proportional to 3,942.39, 5,440.33 and 2,174.03 is: 3,000.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.39 : 5,440.33 = 2,174.03 : x
  2. Step 2: Convert to fraction form
    3,942.39/5,440.33 = 2,174.03/x
  3. Step 3: Cross multiply
    3,942.39x = 5,440.33 × 2,174.03
  4. Step 4: Simplify right side
    3,942.39x = 11,827,440.63
  5. Step 5: Solve for x
    x = 11,827,440.63/3,942.39
  6. Step 6: Final answer
    x = 3,000.07

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1.5x scale

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.