Home / 3,155.75-4,734.24-1,424.38

Finding the Fourth Proportional to 3,155.75, 4,734.24 and 1,424.38

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Solution

The fourth proportional to 3,155.75, 4,734.24 and 1,424.38 is: 2,136.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.75 : 4,734.24 = 1,424.38 : x
  2. Step 2: Convert to fraction form
    3,155.75/4,734.24 = 1,424.38/x
  3. Step 3: Cross multiply
    3,155.75x = 4,734.24 × 1,424.38
  4. Step 4: Simplify right side
    3,155.75x = 6,743,325.98
  5. Step 5: Solve for x
    x = 6,743,325.98/3,155.75
  6. Step 6: Final answer
    x = 2,136.84

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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.