Home / 3,922.85-5,905.65-3,387.17

Finding the Fourth Proportional to 3,922.85, 5,905.65 and 3,387.17

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Solution

The fourth proportional to 3,922.85, 5,905.65 and 3,387.17 is: 5,099.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.85 : 5,905.65 = 3,387.17 : x
  2. Step 2: Convert to fraction form
    3,922.85/5,905.65 = 3,387.17/x
  3. Step 3: Cross multiply
    3,922.85x = 5,905.65 × 3,387.17
  4. Step 4: Simplify right side
    3,922.85x = 20,003,432.04
  5. Step 5: Solve for x
    x = 20,003,432.04/3,922.85
  6. Step 6: Final answer
    x = 5,099.21

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.