Home / 6,942.87-10,401.22-3,428.76

Finding the Fourth Proportional to 6,942.87, 10,401.22 and 3,428.76

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Solution

The fourth proportional to 6,942.87, 10,401.22 and 3,428.76 is: 5,136.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,942.87 : 10,401.22 = 3,428.76 : x
  2. Step 2: Convert to fraction form
    6,942.87/10,401.22 = 3,428.76/x
  3. Step 3: Cross multiply
    6,942.87x = 10,401.22 × 3,428.76
  4. Step 4: Simplify right side
    6,942.87x = 35,663,291.37
  5. Step 5: Solve for x
    x = 35,663,291.37/6,942.87
  6. Step 6: Final answer
    x = 5,136.68

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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.