Home / 3,825.09-5,278.31-2,146.26

Finding the Fourth Proportional to 3,825.09, 5,278.31 and 2,146.26

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Solution

The fourth proportional to 3,825.09, 5,278.31 and 2,146.26 is: 2,961.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.09 : 5,278.31 = 2,146.26 : x
  2. Step 2: Convert to fraction form
    3,825.09/5,278.31 = 2,146.26/x
  3. Step 3: Cross multiply
    3,825.09x = 5,278.31 × 2,146.26
  4. Step 4: Simplify right side
    3,825.09x = 11,328,625.62
  5. Step 5: Solve for x
    x = 11,328,625.62/3,825.09
  6. Step 6: Final answer
    x = 2,961.66

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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.