Home / 3,938.92-5,906.76-1,342.06

Finding the Fourth Proportional to 3,938.92, 5,906.76 and 1,342.06

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Solution

The fourth proportional to 3,938.92, 5,906.76 and 1,342.06 is: 2,012.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.92 : 5,906.76 = 1,342.06 : x
  2. Step 2: Convert to fraction form
    3,938.92/5,906.76 = 1,342.06/x
  3. Step 3: Cross multiply
    3,938.92x = 5,906.76 × 1,342.06
  4. Step 4: Simplify right side
    3,938.92x = 7,927,226.33
  5. Step 5: Solve for x
    x = 7,927,226.33/3,938.92
  6. Step 6: Final answer
    x = 2,012.54

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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.