Home / 3,949.76-5,450.93-2,271.58

Finding the Fourth Proportional to 3,949.76, 5,450.93 and 2,271.58

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Solution

The fourth proportional to 3,949.76, 5,450.93 and 2,271.58 is: 3,134.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.76 : 5,450.93 = 2,271.58 : x
  2. Step 2: Convert to fraction form
    3,949.76/5,450.93 = 2,271.58/x
  3. Step 3: Cross multiply
    3,949.76x = 5,450.93 × 2,271.58
  4. Step 4: Simplify right side
    3,949.76x = 12,382,190.81
  5. Step 5: Solve for x
    x = 12,382,190.81/3,949.76
  6. Step 6: Final answer
    x = 3,134.93

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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.