Home / 5,147.75-7,731.96-3,071.81

Finding the Fourth Proportional to 5,147.75, 7,731.96 and 3,071.81

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Solution

The fourth proportional to 5,147.75, 7,731.96 and 3,071.81 is: 4,613.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.75 : 7,731.96 = 3,071.81 : x
  2. Step 2: Convert to fraction form
    5,147.75/7,731.96 = 3,071.81/x
  3. Step 3: Cross multiply
    5,147.75x = 7,731.96 × 3,071.81
  4. Step 4: Simplify right side
    5,147.75x = 23,751,073.39
  5. Step 5: Solve for x
    x = 23,751,073.39/5,147.75
  6. Step 6: Final answer
    x = 4,613.87

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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.