Home / 3,639.42-5,458.32-1,447.56

Finding the Fourth Proportional to 3,639.42, 5,458.32 and 1,447.56

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Solution

The fourth proportional to 3,639.42, 5,458.32 and 1,447.56 is: 2,171.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.42 : 5,458.32 = 1,447.56 : x
  2. Step 2: Convert to fraction form
    3,639.42/5,458.32 = 1,447.56/x
  3. Step 3: Cross multiply
    3,639.42x = 5,458.32 × 1,447.56
  4. Step 4: Simplify right side
    3,639.42x = 7,901,245.70
  5. Step 5: Solve for x
    x = 7,901,245.70/3,639.42
  6. Step 6: Final answer
    x = 2,171.02

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1.5x scale

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.