Home / 7,040.68-9,716.28-3,896.92

Finding the Fourth Proportional to 7,040.68, 9,716.28 and 3,896.92

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Solution

The fourth proportional to 7,040.68, 9,716.28 and 3,896.92 is: 5,377.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,040.68 : 9,716.28 = 3,896.92 : x
  2. Step 2: Convert to fraction form
    7,040.68/9,716.28 = 3,896.92/x
  3. Step 3: Cross multiply
    7,040.68x = 9,716.28 × 3,896.92
  4. Step 4: Simplify right side
    7,040.68x = 37,863,565.86
  5. Step 5: Solve for x
    x = 37,863,565.86/7,040.68
  6. Step 6: Final answer
    x = 5,377.83

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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.