Home / 7,619.40-11,414.95-3,923.87

Finding the Fourth Proportional to 7,619.40, 11,414.95 and 3,923.87

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Solution

The fourth proportional to 7,619.40, 11,414.95 and 3,923.87 is: 5,878.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.40 : 11,414.95 = 3,923.87 : x
  2. Step 2: Convert to fraction form
    7,619.40/11,414.95 = 3,923.87/x
  3. Step 3: Cross multiply
    7,619.40x = 11,414.95 × 3,923.87
  4. Step 4: Simplify right side
    7,619.40x = 44,790,712.97
  5. Step 5: Solve for x
    x = 44,790,712.97/7,619.40
  6. Step 6: Final answer
    x = 5,878.51

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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.