Home / 3,825.12-5,279.75-2,254.13

Finding the Fourth Proportional to 3,825.12, 5,279.75 and 2,254.13

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Solution

The fourth proportional to 3,825.12, 5,279.75 and 2,254.13 is: 3,111.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,825.12 : 5,279.75 = 2,254.13 : x
  2. Step 2: Convert to fraction form
    3,825.12/5,279.75 = 2,254.13/x
  3. Step 3: Cross multiply
    3,825.12x = 5,279.75 × 2,254.13
  4. Step 4: Simplify right side
    3,825.12x = 11,901,205.20
  5. Step 5: Solve for x
    x = 11,901,205.20/3,825.12
  6. Step 6: Final answer
    x = 3,111.33

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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.