Home / 7,145.23-10,715.77-2,761.69

Finding the Fourth Proportional to 7,145.23, 10,715.77 and 2,761.69

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Solution

The fourth proportional to 7,145.23, 10,715.77 and 2,761.69 is: 4,141.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,145.23 : 10,715.77 = 2,761.69 : x
  2. Step 2: Convert to fraction form
    7,145.23/10,715.77 = 2,761.69/x
  3. Step 3: Cross multiply
    7,145.23x = 10,715.77 × 2,761.69
  4. Step 4: Simplify right side
    7,145.23x = 29,593,634.85
  5. Step 5: Solve for x
    x = 29,593,634.85/7,145.23
  6. Step 6: Final answer
    x = 4,141.73

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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.