Home / 3,629.82-5,445.24-1,438.77

Finding the Fourth Proportional to 3,629.82, 5,445.24 and 1,438.77

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Solution

The fourth proportional to 3,629.82, 5,445.24 and 1,438.77 is: 2,158.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.82 : 5,445.24 = 1,438.77 : x
  2. Step 2: Convert to fraction form
    3,629.82/5,445.24 = 1,438.77/x
  3. Step 3: Cross multiply
    3,629.82x = 5,445.24 × 1,438.77
  4. Step 4: Simplify right side
    3,629.82x = 7,834,447.95
  5. Step 5: Solve for x
    x = 7,834,447.95/3,629.82
  6. Step 6: Final answer
    x = 2,158.36

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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.