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Finding the Fourth Proportional to 3,917.22, 5,875.94 and 1,143.83

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Solution

The fourth proportional to 3,917.22, 5,875.94 and 1,143.83 is: 1,715.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.22 : 5,875.94 = 1,143.83 : x
  2. Step 2: Convert to fraction form
    3,917.22/5,875.94 = 1,143.83/x
  3. Step 3: Cross multiply
    3,917.22x = 5,875.94 × 1,143.83
  4. Step 4: Simplify right side
    3,917.22x = 6,721,076.45
  5. Step 5: Solve for x
    x = 6,721,076.45/3,917.22
  6. Step 6: Final answer
    x = 1,715.78

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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.