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Finding the Fourth Proportional to 7,486.75, 11,230.08 and 1,940.08

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Solution

The fourth proportional to 7,486.75, 11,230.08 and 1,940.08 is: 2,910.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.75 : 11,230.08 = 1,940.08 : x
  2. Step 2: Convert to fraction form
    7,486.75/11,230.08 = 1,940.08/x
  3. Step 3: Cross multiply
    7,486.75x = 11,230.08 × 1,940.08
  4. Step 4: Simplify right side
    7,486.75x = 21,787,253.61
  5. Step 5: Solve for x
    x = 21,787,253.61/7,486.75
  6. Step 6: Final answer
    x = 2,910.11

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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.