Home / 5,213.10-7,194.16-2,855.18

Finding the Fourth Proportional to 5,213.10, 7,194.16 and 2,855.18

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Solution

The fourth proportional to 5,213.10, 7,194.16 and 2,855.18 is: 3,940.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.10 : 7,194.16 = 2,855.18 : x
  2. Step 2: Convert to fraction form
    5,213.10/7,194.16 = 2,855.18/x
  3. Step 3: Cross multiply
    5,213.10x = 7,194.16 × 2,855.18
  4. Step 4: Simplify right side
    5,213.10x = 20,540,621.75
  5. Step 5: Solve for x
    x = 20,540,621.75/5,213.10
  6. Step 6: Final answer
    x = 3,940.19

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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.