Home / 5,213.52-7,194.72-2,855.68

Finding the Fourth Proportional to 5,213.52, 7,194.72 and 2,855.68

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Solution

The fourth proportional to 5,213.52, 7,194.72 and 2,855.68 is: 3,940.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.52 : 7,194.72 = 2,855.68 : x
  2. Step 2: Convert to fraction form
    5,213.52/7,194.72 = 2,855.68/x
  3. Step 3: Cross multiply
    5,213.52x = 7,194.72 × 2,855.68
  4. Step 4: Simplify right side
    5,213.52x = 20,545,818.01
  5. Step 5: Solve for x
    x = 20,545,818.01/5,213.52
  6. Step 6: Final answer
    x = 3,940.87

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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.