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Finding the Fourth Proportional to 3,813.48, 5,717.74 and 2,511

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Solution

The fourth proportional to 3,813.48, 5,717.74 and 2,511 is: 3,764.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,813.48 : 5,717.74 = 2,511 : x
  2. Step 2: Convert to fraction form
    3,813.48/5,717.74 = 2,511/x
  3. Step 3: Cross multiply
    3,813.48x = 5,717.74 × 2,511
  4. Step 4: Simplify right side
    3,813.48x = 14,357,245.14
  5. Step 5: Solve for x
    x = 14,357,245.14/3,813.48
  6. Step 6: Final answer
    x = 3,764.87

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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.