Home / 7,940.26-11,911.61-2,392.87

Finding the Fourth Proportional to 7,940.26, 11,911.61 and 2,392.87

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Solution

The fourth proportional to 7,940.26, 11,911.61 and 2,392.87 is: 3,589.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.26 : 11,911.61 = 2,392.87 : x
  2. Step 2: Convert to fraction form
    7,940.26/11,911.61 = 2,392.87/x
  3. Step 3: Cross multiply
    7,940.26x = 11,911.61 × 2,392.87
  4. Step 4: Simplify right side
    7,940.26x = 28,502,934.22
  5. Step 5: Solve for x
    x = 28,502,934.22/7,940.26
  6. Step 6: Final answer
    x = 3,589.67

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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.