Home / 3,982.16-5,494.76-2,213.76

Finding the Fourth Proportional to 3,982.16, 5,494.76 and 2,213.76

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Solution

The fourth proportional to 3,982.16, 5,494.76 and 2,213.76 is: 3,054.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.16 : 5,494.76 = 2,213.76 : x
  2. Step 2: Convert to fraction form
    3,982.16/5,494.76 = 2,213.76/x
  3. Step 3: Cross multiply
    3,982.16x = 5,494.76 × 2,213.76
  4. Step 4: Simplify right side
    3,982.16x = 12,164,079.90
  5. Step 5: Solve for x
    x = 12,164,079.90/3,982.16
  6. Step 6: Final answer
    x = 3,054.64

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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.