Home / 7,928.07-11,891.49-3,761.83

Finding the Fourth Proportional to 7,928.07, 11,891.49 and 3,761.83

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Solution

The fourth proportional to 7,928.07, 11,891.49 and 3,761.83 is: 5,642.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.07 : 11,891.49 = 3,761.83 : x
  2. Step 2: Convert to fraction form
    7,928.07/11,891.49 = 3,761.83/x
  3. Step 3: Cross multiply
    7,928.07x = 11,891.49 × 3,761.83
  4. Step 4: Simplify right side
    7,928.07x = 44,733,763.83
  5. Step 5: Solve for x
    x = 44,733,763.83/7,928.07
  6. Step 6: Final answer
    x = 5,642.45

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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.