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Finding the Fourth Proportional to 3,813.99, 5,722.82 and 1,349.97

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Solution

The fourth proportional to 3,813.99, 5,722.82 and 1,349.97 is: 2,025.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.99 : 5,722.82 = 1,349.97 : x
  2. Step 2: Convert to fraction form
    3,813.99/5,722.82 = 1,349.97/x
  3. Step 3: Cross multiply
    3,813.99x = 5,722.82 × 1,349.97
  4. Step 4: Simplify right side
    3,813.99x = 7,725,612.17
  5. Step 5: Solve for x
    x = 7,725,612.17/3,813.99
  6. Step 6: Final answer
    x = 2,025.60

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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.