Home / 3,881.78-5,821.76-1,933.54

Finding the Fourth Proportional to 3,881.78, 5,821.76 and 1,933.54

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Solution

The fourth proportional to 3,881.78, 5,821.76 and 1,933.54 is: 2,899.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.78 : 5,821.76 = 1,933.54 : x
  2. Step 2: Convert to fraction form
    3,881.78/5,821.76 = 1,933.54/x
  3. Step 3: Cross multiply
    3,881.78x = 5,821.76 × 1,933.54
  4. Step 4: Simplify right side
    3,881.78x = 11,256,605.83
  5. Step 5: Solve for x
    x = 11,256,605.83/3,881.78
  6. Step 6: Final answer
    x = 2,899.86

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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.