Home / 6,942.62-10,400.85-3,428.51

Finding the Fourth Proportional to 6,942.62, 10,400.85 and 3,428.51

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Solution

The fourth proportional to 6,942.62, 10,400.85 and 3,428.51 is: 5,136.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,942.62 : 10,400.85 = 3,428.51 : x
  2. Step 2: Convert to fraction form
    6,942.62/10,400.85 = 3,428.51/x
  3. Step 3: Cross multiply
    6,942.62x = 10,400.85 × 3,428.51
  4. Step 4: Simplify right side
    6,942.62x = 35,659,401.09
  5. Step 5: Solve for x
    x = 35,659,401.09/6,942.62
  6. Step 6: Final answer
    x = 5,136.31

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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.