Home / 3,630.12-5,445.94-1,438.94

Finding the Fourth Proportional to 3,630.12, 5,445.94 and 1,438.94

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Solution

The fourth proportional to 3,630.12, 5,445.94 and 1,438.94 is: 2,158.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.12 : 5,445.94 = 1,438.94 : x
  2. Step 2: Convert to fraction form
    3,630.12/5,445.94 = 1,438.94/x
  3. Step 3: Cross multiply
    3,630.12x = 5,445.94 × 1,438.94
  4. Step 4: Simplify right side
    3,630.12x = 7,836,380.90
  5. Step 5: Solve for x
    x = 7,836,380.90/3,630.12
  6. Step 6: Final answer
    x = 2,158.71

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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.