Home / 3,982.86-5,495.70-2,214.42

Finding the Fourth Proportional to 3,982.86, 5,495.70 and 2,214.42

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Solution

The fourth proportional to 3,982.86, 5,495.70 and 2,214.42 is: 3,055.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,982.86 : 5,495.70 = 2,214.42 : x
  2. Step 2: Convert to fraction form
    3,982.86/5,495.70 = 2,214.42/x
  3. Step 3: Cross multiply
    3,982.86x = 5,495.70 × 2,214.42
  4. Step 4: Simplify right side
    3,982.86x = 12,169,787.99
  5. Step 5: Solve for x
    x = 12,169,787.99/3,982.86
  6. Step 6: Final answer
    x = 3,055.54

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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.