Home / 7,940.73-11,911.71-2,097.18

Finding the Fourth Proportional to 7,940.73, 11,911.71 and 2,097.18

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Solution

The fourth proportional to 7,940.73, 11,911.71 and 2,097.18 is: 3,145.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.73 : 11,911.71 = 2,097.18 : x
  2. Step 2: Convert to fraction form
    7,940.73/11,911.71 = 2,097.18/x
  3. Step 3: Cross multiply
    7,940.73x = 11,911.71 × 2,097.18
  4. Step 4: Simplify right side
    7,940.73x = 24,980,999.98
  5. Step 5: Solve for x
    x = 24,980,999.98/7,940.73
  6. Step 6: Final answer
    x = 3,145.93

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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.