Home / 5,213.21-7,194.25-2,855.36

Finding the Fourth Proportional to 5,213.21, 7,194.25 and 2,855.36

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Solution

The fourth proportional to 5,213.21, 7,194.25 and 2,855.36 is: 3,940.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.21 : 7,194.25 = 2,855.36 : x
  2. Step 2: Convert to fraction form
    5,213.21/7,194.25 = 2,855.36/x
  3. Step 3: Cross multiply
    5,213.21x = 7,194.25 × 2,855.36
  4. Step 4: Simplify right side
    5,213.21x = 20,542,130.57
  5. Step 5: Solve for x
    x = 20,542,130.57/5,213.21
  6. Step 6: Final answer
    x = 3,940.40

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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.