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Finding the Fourth Proportional to 3,814.91, 5,721.58 and 1,349.81

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Solution

The fourth proportional to 3,814.91, 5,721.58 and 1,349.81 is: 2,024.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,814.91 : 5,721.58 = 1,349.81 : x
  2. Step 2: Convert to fraction form
    3,814.91/5,721.58 = 1,349.81/x
  3. Step 3: Cross multiply
    3,814.91x = 5,721.58 × 1,349.81
  4. Step 4: Simplify right side
    3,814.91x = 7,723,045.90
  5. Step 5: Solve for x
    x = 7,723,045.90/3,814.91
  6. Step 6: Final answer
    x = 2,024.44

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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.