Home / 7,940.25-11,910.65-3,196.35

Finding the Fourth Proportional to 7,940.25, 11,910.65 and 3,196.35

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Solution

The fourth proportional to 7,940.25, 11,910.65 and 3,196.35 is: 4,794.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.25 : 11,910.65 = 3,196.35 : x
  2. Step 2: Convert to fraction form
    7,940.25/11,910.65 = 3,196.35/x
  3. Step 3: Cross multiply
    7,940.25x = 11,910.65 × 3,196.35
  4. Step 4: Simplify right side
    7,940.25x = 38,070,590.15
  5. Step 5: Solve for x
    x = 38,070,590.15/7,940.25
  6. Step 6: Final answer
    x = 4,794.63

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1.5x scale

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.