Home / 3,949.07-5,450.09-2,271.46

Finding the Fourth Proportional to 3,949.07, 5,450.09 and 2,271.46

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Solution

The fourth proportional to 3,949.07, 5,450.09 and 2,271.46 is: 3,134.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.07 : 5,450.09 = 2,271.46 : x
  2. Step 2: Convert to fraction form
    3,949.07/5,450.09 = 2,271.46/x
  3. Step 3: Cross multiply
    3,949.07x = 5,450.09 × 2,271.46
  4. Step 4: Simplify right side
    3,949.07x = 12,379,661.43
  5. Step 5: Solve for x
    x = 12,379,661.43/3,949.07
  6. Step 6: Final answer
    x = 3,134.83

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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.