Home / 3,629.42-5,447.26-1,439.72

Finding the Fourth Proportional to 3,629.42, 5,447.26 and 1,439.72

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Solution

The fourth proportional to 3,629.42, 5,447.26 and 1,439.72 is: 2,160.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.42 : 5,447.26 = 1,439.72 : x
  2. Step 2: Convert to fraction form
    3,629.42/5,447.26 = 1,439.72/x
  3. Step 3: Cross multiply
    3,629.42x = 5,447.26 × 1,439.72
  4. Step 4: Simplify right side
    3,629.42x = 7,842,529.17
  5. Step 5: Solve for x
    x = 7,842,529.17/3,629.42
  6. Step 6: Final answer
    x = 2,160.82

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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.