Home / 5,186.42-7,767.24-2,842.90

Finding the Fourth Proportional to 5,186.42, 7,767.24 and 2,842.90

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Solution

The fourth proportional to 5,186.42, 7,767.24 and 2,842.90 is: 4,257.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186.42 : 7,767.24 = 2,842.90 : x
  2. Step 2: Convert to fraction form
    5,186.42/7,767.24 = 2,842.90/x
  3. Step 3: Cross multiply
    5,186.42x = 7,767.24 × 2,842.90
  4. Step 4: Simplify right side
    5,186.42x = 22,081,486.60
  5. Step 5: Solve for x
    x = 22,081,486.60/5,186.42
  6. Step 6: Final answer
    x = 4,257.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.