Home / 7,817.40-11,727.39-2,550.90

Finding the Fourth Proportional to 7,817.40, 11,727.39 and 2,550.90

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Solution

The fourth proportional to 7,817.40, 11,727.39 and 2,550.90 is: 3,826.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.40 : 11,727.39 = 2,550.90 : x
  2. Step 2: Convert to fraction form
    7,817.40/11,727.39 = 2,550.90/x
  3. Step 3: Cross multiply
    7,817.40x = 11,727.39 × 2,550.90
  4. Step 4: Simplify right side
    7,817.40x = 29,915,399.15
  5. Step 5: Solve for x
    x = 29,915,399.15/7,817.40
  6. Step 6: Final answer
    x = 3,826.77

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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.