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Finding the Fourth Proportional to 3,763.48, 5,645.22 and 1,455.52

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Solution

The fourth proportional to 3,763.48, 5,645.22 and 1,455.52 is: 2,183.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,763.48 : 5,645.22 = 1,455.52 : x
  2. Step 2: Convert to fraction form
    3,763.48/5,645.22 = 1,455.52/x
  3. Step 3: Cross multiply
    3,763.48x = 5,645.22 × 1,455.52
  4. Step 4: Simplify right side
    3,763.48x = 8,216,730.61
  5. Step 5: Solve for x
    x = 8,216,730.61/3,763.48
  6. Step 6: Final answer
    x = 2,183.28

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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.