Home / 2,722.14-4,080.78-1,628.64

Finding the Fourth Proportional to 2,722.14, 4,080.78 and 1,628.64

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Solution

The fourth proportional to 2,722.14, 4,080.78 and 1,628.64 is: 2,441.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.14 : 4,080.78 = 1,628.64 : x
  2. Step 2: Convert to fraction form
    2,722.14/4,080.78 = 1,628.64/x
  3. Step 3: Cross multiply
    2,722.14x = 4,080.78 × 1,628.64
  4. Step 4: Simplify right side
    2,722.14x = 6,646,121.54
  5. Step 5: Solve for x
    x = 6,646,121.54/2,722.14
  6. Step 6: Final answer
    x = 2,441.51

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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.