Home / 3,949.67-5,450.94-3,391.98

Finding the Fourth Proportional to 3,949.67, 5,450.94 and 3,391.98

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Solution

The fourth proportional to 3,949.67, 5,450.94 and 3,391.98 is: 4,681.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.67 : 5,450.94 = 3,391.98 : x
  2. Step 2: Convert to fraction form
    3,949.67/5,450.94 = 3,391.98/x
  3. Step 3: Cross multiply
    3,949.67x = 5,450.94 × 3,391.98
  4. Step 4: Simplify right side
    3,949.67x = 18,489,479.46
  5. Step 5: Solve for x
    x = 18,489,479.46/3,949.67
  6. Step 6: Final answer
    x = 4,681.28

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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.