Home / 7,120.53-10,684.44-3,836.79

Finding the Fourth Proportional to 7,120.53, 10,684.44 and 3,836.79

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Solution

The fourth proportional to 7,120.53, 10,684.44 and 3,836.79 is: 5,757.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,120.53 : 10,684.44 = 3,836.79 : x
  2. Step 2: Convert to fraction form
    7,120.53/10,684.44 = 3,836.79/x
  3. Step 3: Cross multiply
    7,120.53x = 10,684.44 × 3,836.79
  4. Step 4: Simplify right side
    7,120.53x = 40,993,952.55
  5. Step 5: Solve for x
    x = 40,993,952.55/7,120.53
  6. Step 6: Final answer
    x = 5,757.15

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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.