Home / 2,811.26-3,879.44-1,552.28

Finding the Fourth Proportional to 2,811.26, 3,879.44 and 1,552.28

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Solution

The fourth proportional to 2,811.26, 3,879.44 and 1,552.28 is: 2,142.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.26 : 3,879.44 = 1,552.28 : x
  2. Step 2: Convert to fraction form
    2,811.26/3,879.44 = 1,552.28/x
  3. Step 3: Cross multiply
    2,811.26x = 3,879.44 × 1,552.28
  4. Step 4: Simplify right side
    2,811.26x = 6,021,977.12
  5. Step 5: Solve for x
    x = 6,021,977.12/2,811.26
  6. Step 6: Final answer
    x = 2,142.09

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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.