Home / 5,186.43-7,157.97-3,298.20

Finding the Fourth Proportional to 5,186.43, 7,157.97 and 3,298.20

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Solution

The fourth proportional to 5,186.43, 7,157.97 and 3,298.20 is: 4,551.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.43 : 7,157.97 = 3,298.20 : x
  2. Step 2: Convert to fraction form
    5,186.43/7,157.97 = 3,298.20/x
  3. Step 3: Cross multiply
    5,186.43x = 7,157.97 × 3,298.20
  4. Step 4: Simplify right side
    5,186.43x = 23,608,416.65
  5. Step 5: Solve for x
    x = 23,608,416.65/5,186.43
  6. Step 6: Final answer
    x = 4,551.96

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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.