Home / 2,861.91-4,286.69-1,932.36

Finding the Fourth Proportional to 2,861.91, 4,286.69 and 1,932.36

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Solution

The fourth proportional to 2,861.91, 4,286.69 and 1,932.36 is: 2,894.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.91 : 4,286.69 = 1,932.36 : x
  2. Step 2: Convert to fraction form
    2,861.91/4,286.69 = 1,932.36/x
  3. Step 3: Cross multiply
    2,861.91x = 4,286.69 × 1,932.36
  4. Step 4: Simplify right side
    2,861.91x = 8,283,428.29
  5. Step 5: Solve for x
    x = 8,283,428.29/2,861.91
  6. Step 6: Final answer
    x = 2,894.37

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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.