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Finding the Fourth Proportional to 7,550.50, 11,325.75 and 2,078.50

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Solution

The fourth proportional to 7,550.50, 11,325.75 and 2,078.50 is: 3,117.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,550.50 : 11,325.75 = 2,078.50 : x
  2. Step 2: Convert to fraction form
    7,550.50/11,325.75 = 2,078.50/x
  3. Step 3: Cross multiply
    7,550.50x = 11,325.75 × 2,078.50
  4. Step 4: Simplify right side
    7,550.50x = 23,540,571.38
  5. Step 5: Solve for x
    x = 23,540,571.38/7,550.50
  6. Step 6: Final answer
    x = 3,117.75

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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.