Home / 5,213.45-7,194.36-2,855.54

Finding the Fourth Proportional to 5,213.45, 7,194.36 and 2,855.54

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Solution

The fourth proportional to 5,213.45, 7,194.36 and 2,855.54 is: 3,940.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.45 : 7,194.36 = 2,855.54 : x
  2. Step 2: Convert to fraction form
    5,213.45/7,194.36 = 2,855.54/x
  3. Step 3: Cross multiply
    5,213.45x = 7,194.36 × 2,855.54
  4. Step 4: Simplify right side
    5,213.45x = 20,543,746.78
  5. Step 5: Solve for x
    x = 20,543,746.78/5,213.45
  6. Step 6: Final answer
    x = 3,940.53

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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.