Home / 3,926.99-5,898.68-3,311.91

Finding the Fourth Proportional to 3,926.99, 5,898.68 and 3,311.91

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Solution

The fourth proportional to 3,926.99, 5,898.68 and 3,311.91 is: 4,974.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,926.99 : 5,898.68 = 3,311.91 : x
  2. Step 2: Convert to fraction form
    3,926.99/5,898.68 = 3,311.91/x
  3. Step 3: Cross multiply
    3,926.99x = 5,898.68 × 3,311.91
  4. Step 4: Simplify right side
    3,926.99x = 19,535,897.28
  5. Step 5: Solve for x
    x = 19,535,897.28/3,926.99
  6. Step 6: Final answer
    x = 4,974.78

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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.