Home / 7,198.86-10,795.56-2,815.77

Finding the Fourth Proportional to 7,198.86, 10,795.56 and 2,815.77

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Solution

The fourth proportional to 7,198.86, 10,795.56 and 2,815.77 is: 4,222.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,198.86 : 10,795.56 = 2,815.77 : x
  2. Step 2: Convert to fraction form
    7,198.86/10,795.56 = 2,815.77/x
  3. Step 3: Cross multiply
    7,198.86x = 10,795.56 × 2,815.77
  4. Step 4: Simplify right side
    7,198.86x = 30,397,813.98
  5. Step 5: Solve for x
    x = 30,397,813.98/7,198.86
  6. Step 6: Final answer
    x = 4,222.59

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1.5x scale

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.