Home / 7,940.39-11,911.79-2,393.01

Finding the Fourth Proportional to 7,940.39, 11,911.79 and 2,393.01

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Solution

The fourth proportional to 7,940.39, 11,911.79 and 2,393.01 is: 3,589.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.39 : 11,911.79 = 2,393.01 : x
  2. Step 2: Convert to fraction form
    7,940.39/11,911.79 = 2,393.01/x
  3. Step 3: Cross multiply
    7,940.39x = 11,911.79 × 2,393.01
  4. Step 4: Simplify right side
    7,940.39x = 28,505,038.57
  5. Step 5: Solve for x
    x = 28,505,038.57/7,940.39
  6. Step 6: Final answer
    x = 3,589.88

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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.