Home / 7,940.35-11,909.61-2,097.41

Finding the Fourth Proportional to 7,940.35, 11,909.61 and 2,097.41

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Solution

The fourth proportional to 7,940.35, 11,909.61 and 2,097.41 is: 3,145.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.35 : 11,909.61 = 2,097.41 : x
  2. Step 2: Convert to fraction form
    7,940.35/11,909.61 = 2,097.41/x
  3. Step 3: Cross multiply
    7,940.35x = 11,909.61 × 2,097.41
  4. Step 4: Simplify right side
    7,940.35x = 24,979,354.40
  5. Step 5: Solve for x
    x = 24,979,354.40/7,940.35
  6. Step 6: Final answer
    x = 3,145.88

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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.