Home / 3,982.32-5,495.21-2,213.82

Finding the Fourth Proportional to 3,982.32, 5,495.21 and 2,213.82

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Solution

The fourth proportional to 3,982.32, 5,495.21 and 2,213.82 is: 3,054.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.32 : 5,495.21 = 2,213.82 : x
  2. Step 2: Convert to fraction form
    3,982.32/5,495.21 = 2,213.82/x
  3. Step 3: Cross multiply
    3,982.32x = 5,495.21 × 2,213.82
  4. Step 4: Simplify right side
    3,982.32x = 12,165,405.80
  5. Step 5: Solve for x
    x = 12,165,405.80/3,982.32
  6. Step 6: Final answer
    x = 3,054.85

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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.