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Finding the Fourth Proportional to 3,806.34, 5,709.68 and 1,465.51

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Solution

The fourth proportional to 3,806.34, 5,709.68 and 1,465.51 is: 2,198.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,806.34 : 5,709.68 = 1,465.51 : x
  2. Step 2: Convert to fraction form
    3,806.34/5,709.68 = 1,465.51/x
  3. Step 3: Cross multiply
    3,806.34x = 5,709.68 × 1,465.51
  4. Step 4: Simplify right side
    3,806.34x = 8,367,571.54
  5. Step 5: Solve for x
    x = 8,367,571.54/3,806.34
  6. Step 6: Final answer
    x = 2,198.32

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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.