Home / 7,940.39-11,915.96-3,261.24

Finding the Fourth Proportional to 7,940.39, 11,915.96 and 3,261.24

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Solution

The fourth proportional to 7,940.39, 11,915.96 and 3,261.24 is: 4,894.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.39 : 11,915.96 = 3,261.24 : x
  2. Step 2: Convert to fraction form
    7,940.39/11,915.96 = 3,261.24/x
  3. Step 3: Cross multiply
    7,940.39x = 11,915.96 × 3,261.24
  4. Step 4: Simplify right side
    7,940.39x = 38,860,805.39
  5. Step 5: Solve for x
    x = 38,860,805.39/7,940.39
  6. Step 6: Final answer
    x = 4,894.07

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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.