Home / 3,627.90-5,438.12-1,433.61

Finding the Fourth Proportional to 3,627.90, 5,438.12 and 1,433.61

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Solution

The fourth proportional to 3,627.90, 5,438.12 and 1,433.61 is: 2,148.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,627.90 : 5,438.12 = 1,433.61 : x
  2. Step 2: Convert to fraction form
    3,627.90/5,438.12 = 1,433.61/x
  3. Step 3: Cross multiply
    3,627.90x = 5,438.12 × 1,433.61
  4. Step 4: Simplify right side
    3,627.90x = 7,796,136.05
  5. Step 5: Solve for x
    x = 7,796,136.05/3,627.90
  6. Step 6: Final answer
    x = 2,148.94

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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.