Home / 3,949.16-5,450.63-2,271.71

Finding the Fourth Proportional to 3,949.16, 5,450.63 and 2,271.71

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Solution

The fourth proportional to 3,949.16, 5,450.63 and 2,271.71 is: 3,135.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.16 : 5,450.63 = 2,271.71 : x
  2. Step 2: Convert to fraction form
    3,949.16/5,450.63 = 2,271.71/x
  3. Step 3: Cross multiply
    3,949.16x = 5,450.63 × 2,271.71
  4. Step 4: Simplify right side
    3,949.16x = 12,382,252.95
  5. Step 5: Solve for x
    x = 12,382,252.95/3,949.16
  6. Step 6: Final answer
    x = 3,135.42

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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.