Home / 3,982.18-5,495.43-2,213.95

Finding the Fourth Proportional to 3,982.18, 5,495.43 and 2,213.95

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Solution

The fourth proportional to 3,982.18, 5,495.43 and 2,213.95 is: 3,055.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.18 : 5,495.43 = 2,213.95 : x
  2. Step 2: Convert to fraction form
    3,982.18/5,495.43 = 2,213.95/x
  3. Step 3: Cross multiply
    3,982.18x = 5,495.43 × 2,213.95
  4. Step 4: Simplify right side
    3,982.18x = 12,166,607.25
  5. Step 5: Solve for x
    x = 12,166,607.25/3,982.18
  6. Step 6: Final answer
    x = 3,055.26

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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.