Home / 2,811.19-3,879.43-1,552.26

Finding the Fourth Proportional to 2,811.19, 3,879.43 and 1,552.26

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Solution

The fourth proportional to 2,811.19, 3,879.43 and 1,552.26 is: 2,142.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.19 : 3,879.43 = 1,552.26 : x
  2. Step 2: Convert to fraction form
    2,811.19/3,879.43 = 1,552.26/x
  3. Step 3: Cross multiply
    2,811.19x = 3,879.43 × 1,552.26
  4. Step 4: Simplify right side
    2,811.19x = 6,021,884.01
  5. Step 5: Solve for x
    x = 6,021,884.01/2,811.19
  6. Step 6: Final answer
    x = 2,142.11

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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.