Home / 3,827.75-5,281.90-2,149.03

Finding the Fourth Proportional to 3,827.75, 5,281.90 and 2,149.03

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Solution

The fourth proportional to 3,827.75, 5,281.90 and 2,149.03 is: 2,965.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,827.75 : 5,281.90 = 2,149.03 : x
  2. Step 2: Convert to fraction form
    3,827.75/5,281.90 = 2,149.03/x
  3. Step 3: Cross multiply
    3,827.75x = 5,281.90 × 2,149.03
  4. Step 4: Simplify right side
    3,827.75x = 11,350,961.56
  5. Step 5: Solve for x
    x = 11,350,961.56/3,827.75
  6. Step 6: Final answer
    x = 2,965.44

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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.