Home / 5,212.45-7,818.68-2,614.78

Finding the Fourth Proportional to 5,212.45, 7,818.68 and 2,614.78

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Solution

The fourth proportional to 5,212.45, 7,818.68 and 2,614.78 is: 3,922.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,212.45 : 7,818.68 = 2,614.78 : x
  2. Step 2: Convert to fraction form
    5,212.45/7,818.68 = 2,614.78/x
  3. Step 3: Cross multiply
    5,212.45x = 7,818.68 × 2,614.78
  4. Step 4: Simplify right side
    5,212.45x = 20,444,128.09
  5. Step 5: Solve for x
    x = 20,444,128.09/5,212.45
  6. Step 6: Final answer
    x = 3,922.17

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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.