Home / 5,213.56-7,194.66-2,855.69

Finding the Fourth Proportional to 5,213.56, 7,194.66 and 2,855.69

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Solution

The fourth proportional to 5,213.56, 7,194.66 and 2,855.69 is: 3,940.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.56 : 7,194.66 = 2,855.69 : x
  2. Step 2: Convert to fraction form
    5,213.56/7,194.66 = 2,855.69/x
  3. Step 3: Cross multiply
    5,213.56x = 7,194.66 × 2,855.69
  4. Step 4: Simplify right side
    5,213.56x = 20,545,718.62
  5. Step 5: Solve for x
    x = 20,545,718.62/5,213.56
  6. Step 6: Final answer
    x = 3,940.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.