Home / 3,145.42-4,708.41-2,814.94

Finding the Fourth Proportional to 3,145.42, 4,708.41 and 2,814.94

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Solution

The fourth proportional to 3,145.42, 4,708.41 and 2,814.94 is: 4,213.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.42 : 4,708.41 = 2,814.94 : x
  2. Step 2: Convert to fraction form
    3,145.42/4,708.41 = 2,814.94/x
  3. Step 3: Cross multiply
    3,145.42x = 4,708.41 × 2,814.94
  4. Step 4: Simplify right side
    3,145.42x = 13,253,891.65
  5. Step 5: Solve for x
    x = 13,253,891.65/3,145.42
  6. Step 6: Final answer
    x = 4,213.71

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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.