Home / 3,909.44-5,395-2,141.04

Finding the Fourth Proportional to 3,909.44, 5,395 and 2,141.04

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Solution

The fourth proportional to 3,909.44, 5,395 and 2,141.04 is: 2,954.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.44 : 5,395 = 2,141.04 : x
  2. Step 2: Convert to fraction form
    3,909.44/5,395 = 2,141.04/x
  3. Step 3: Cross multiply
    3,909.44x = 5,395 × 2,141.04
  4. Step 4: Simplify right side
    3,909.44x = 11,550,910.80
  5. Step 5: Solve for x
    x = 11,550,910.80/3,909.44
  6. Step 6: Final answer
    x = 2,954.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.