Home / 5,490.42-8,231.58-3,849.90

Finding the Fourth Proportional to 5,490.42, 8,231.58 and 3,849.90

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Solution

The fourth proportional to 5,490.42, 8,231.58 and 3,849.90 is: 5,772.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490.42 : 8,231.58 = 3,849.90 : x
  2. Step 2: Convert to fraction form
    5,490.42/8,231.58 = 3,849.90/x
  3. Step 3: Cross multiply
    5,490.42x = 8,231.58 × 3,849.90
  4. Step 4: Simplify right side
    5,490.42x = 31,690,759.84
  5. Step 5: Solve for x
    x = 31,690,759.84/5,490.42
  6. Step 6: Final answer
    x = 5,772.01

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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.