Home / 5,213.16-7,194.14-2,855.28

Finding the Fourth Proportional to 5,213.16, 7,194.14 and 2,855.28

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Solution

The fourth proportional to 5,213.16, 7,194.14 and 2,855.28 is: 3,940.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.16 : 7,194.14 = 2,855.28 : x
  2. Step 2: Convert to fraction form
    5,213.16/7,194.14 = 2,855.28/x
  3. Step 3: Cross multiply
    5,213.16x = 7,194.14 × 2,855.28
  4. Step 4: Simplify right side
    5,213.16x = 20,541,284.06
  5. Step 5: Solve for x
    x = 20,541,284.06/5,213.16
  6. Step 6: Final answer
    x = 3,940.28

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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.