Home / 7,436.12-11,150.91-2,815.88

Finding the Fourth Proportional to 7,436.12, 11,150.91 and 2,815.88

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Solution

The fourth proportional to 7,436.12, 11,150.91 and 2,815.88 is: 4,222.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,436.12 : 11,150.91 = 2,815.88 : x
  2. Step 2: Convert to fraction form
    7,436.12/11,150.91 = 2,815.88/x
  3. Step 3: Cross multiply
    7,436.12x = 11,150.91 × 2,815.88
  4. Step 4: Simplify right side
    7,436.12x = 31,399,568.70
  5. Step 5: Solve for x
    x = 31,399,568.70/7,436.12
  6. Step 6: Final answer
    x = 4,222.58

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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.