Home / 5,148.25-7,104.56-2,790.38

Finding the Fourth Proportional to 5,148.25, 7,104.56 and 2,790.38

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Solution

The fourth proportional to 5,148.25, 7,104.56 and 2,790.38 is: 3,850.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,148.25 : 7,104.56 = 2,790.38 : x
  2. Step 2: Convert to fraction form
    5,148.25/7,104.56 = 2,790.38/x
  3. Step 3: Cross multiply
    5,148.25x = 7,104.56 × 2,790.38
  4. Step 4: Simplify right side
    5,148.25x = 19,824,425.94
  5. Step 5: Solve for x
    x = 19,824,425.94/5,148.25
  6. Step 6: Final answer
    x = 3,850.71

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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.