Home / 6,790.14-9,371.25-4,138.38

Finding the Fourth Proportional to 6,790.14, 9,371.25 and 4,138.38

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Solution

The fourth proportional to 6,790.14, 9,371.25 and 4,138.38 is: 5,711.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,790.14 : 9,371.25 = 4,138.38 : x
  2. Step 2: Convert to fraction form
    6,790.14/9,371.25 = 4,138.38/x
  3. Step 3: Cross multiply
    6,790.14x = 9,371.25 × 4,138.38
  4. Step 4: Simplify right side
    6,790.14x = 38,781,793.58
  5. Step 5: Solve for x
    x = 38,781,793.58/6,790.14
  6. Step 6: Final answer
    x = 5,711.49

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1.5x scale

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.