Home / 3,921.22-5,409.46-2,504.18

Finding the Fourth Proportional to 3,921.22, 5,409.46 and 2,504.18

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Solution

The fourth proportional to 3,921.22, 5,409.46 and 2,504.18 is: 3,454.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,921.22 : 5,409.46 = 2,504.18 : x
  2. Step 2: Convert to fraction form
    3,921.22/5,409.46 = 2,504.18/x
  3. Step 3: Cross multiply
    3,921.22x = 5,409.46 × 2,504.18
  4. Step 4: Simplify right side
    3,921.22x = 13,546,278.20
  5. Step 5: Solve for x
    x = 13,546,278.20/3,921.22
  6. Step 6: Final answer
    x = 3,454.61

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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.