Home / 5,185.76-7,771.34-2,257.91

Finding the Fourth Proportional to 5,185.76, 7,771.34 and 2,257.91

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Solution

The fourth proportional to 5,185.76, 7,771.34 and 2,257.91 is: 3,383.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.76 : 7,771.34 = 2,257.91 : x
  2. Step 2: Convert to fraction form
    5,185.76/7,771.34 = 2,257.91/x
  3. Step 3: Cross multiply
    5,185.76x = 7,771.34 × 2,257.91
  4. Step 4: Simplify right side
    5,185.76x = 17,546,982.23
  5. Step 5: Solve for x
    x = 17,546,982.23/5,185.76
  6. Step 6: Final answer
    x = 3,383.69

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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.