Home / 2,797.20-3,858.44-2,012.31

Finding the Fourth Proportional to 2,797.20, 3,858.44 and 2,012.31

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Solution

The fourth proportional to 2,797.20, 3,858.44 and 2,012.31 is: 2,775.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,797.20 : 3,858.44 = 2,012.31 : x
  2. Step 2: Convert to fraction form
    2,797.20/3,858.44 = 2,012.31/x
  3. Step 3: Cross multiply
    2,797.20x = 3,858.44 × 2,012.31
  4. Step 4: Simplify right side
    2,797.20x = 7,764,367.33
  5. Step 5: Solve for x
    x = 7,764,367.33/2,797.20
  6. Step 6: Final answer
    x = 2,775.76

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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.