Home / 3,994.31-5,512.35-2,225.88

Finding the Fourth Proportional to 3,994.31, 5,512.35 and 2,225.88

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Solution

The fourth proportional to 3,994.31, 5,512.35 and 2,225.88 is: 3,071.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,994.31 : 5,512.35 = 2,225.88 : x
  2. Step 2: Convert to fraction form
    3,994.31/5,512.35 = 2,225.88/x
  3. Step 3: Cross multiply
    3,994.31x = 5,512.35 × 2,225.88
  4. Step 4: Simplify right side
    3,994.31x = 12,269,837.97
  5. Step 5: Solve for x
    x = 12,269,837.97/3,994.31
  6. Step 6: Final answer
    x = 3,071.83

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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.