Home / 3,942.62-5,910.26-3,126.14

Finding the Fourth Proportional to 3,942.62, 5,910.26 and 3,126.14

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Solution

The fourth proportional to 3,942.62, 5,910.26 and 3,126.14 is: 4,686.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.62 : 5,910.26 = 3,126.14 : x
  2. Step 2: Convert to fraction form
    3,942.62/5,910.26 = 3,126.14/x
  3. Step 3: Cross multiply
    3,942.62x = 5,910.26 × 3,126.14
  4. Step 4: Simplify right side
    3,942.62x = 18,476,300.20
  5. Step 5: Solve for x
    x = 18,476,300.20/3,942.62
  6. Step 6: Final answer
    x = 4,686.30

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1.5x scale

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.