Home / 3,909.42-5,394.94-2,141.02

Finding the Fourth Proportional to 3,909.42, 5,394.94 and 2,141.02

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Solution

The fourth proportional to 3,909.42, 5,394.94 and 2,141.02 is: 2,954.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,909.42 : 5,394.94 = 2,141.02 : x
  2. Step 2: Convert to fraction form
    3,909.42/5,394.94 = 2,141.02/x
  3. Step 3: Cross multiply
    3,909.42x = 5,394.94 × 2,141.02
  4. Step 4: Simplify right side
    3,909.42x = 11,550,674.44
  5. Step 5: Solve for x
    x = 11,550,674.44/3,909.42
  6. Step 6: Final answer
    x = 2,954.57

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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.