Home / 3,943.51-5,912.82-2,213.35

Finding the Fourth Proportional to 3,943.51, 5,912.82 and 2,213.35

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Solution

The fourth proportional to 3,943.51, 5,912.82 and 2,213.35 is: 3,318.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,943.51 : 5,912.82 = 2,213.35 : x
  2. Step 2: Convert to fraction form
    3,943.51/5,912.82 = 2,213.35/x
  3. Step 3: Cross multiply
    3,943.51x = 5,912.82 × 2,213.35
  4. Step 4: Simplify right side
    3,943.51x = 13,087,140.15
  5. Step 5: Solve for x
    x = 13,087,140.15/3,943.51
  6. Step 6: Final answer
    x = 3,318.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.