Home / 2,917.14-4,042.68-2,861.76

Finding the Fourth Proportional to 2,917.14, 4,042.68 and 2,861.76

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Solution

The fourth proportional to 2,917.14, 4,042.68 and 2,861.76 is: 3,965.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.14 : 4,042.68 = 2,861.76 : x
  2. Step 2: Convert to fraction form
    2,917.14/4,042.68 = 2,861.76/x
  3. Step 3: Cross multiply
    2,917.14x = 4,042.68 × 2,861.76
  4. Step 4: Simplify right side
    2,917.14x = 11,569,179.92
  5. Step 5: Solve for x
    x = 11,569,179.92/2,917.14
  6. Step 6: Final answer
    x = 3,965.93

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.