Home / 5,162.49-7,121.56-3,270.87

Finding the Fourth Proportional to 5,162.49, 7,121.56 and 3,270.87

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Solution

The fourth proportional to 5,162.49, 7,121.56 and 3,270.87 is: 4,512.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,162.49 : 7,121.56 = 3,270.87 : x
  2. Step 2: Convert to fraction form
    5,162.49/7,121.56 = 3,270.87/x
  3. Step 3: Cross multiply
    5,162.49x = 7,121.56 × 3,270.87
  4. Step 4: Simplify right side
    5,162.49x = 23,293,696.96
  5. Step 5: Solve for x
    x = 23,293,696.96/5,162.49
  6. Step 6: Final answer
    x = 4,512.11

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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.