Home / 3,761.53-5,191.35-2,189.62

Finding the Fourth Proportional to 3,761.53, 5,191.35 and 2,189.62

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Solution

The fourth proportional to 3,761.53, 5,191.35 and 2,189.62 is: 3,021.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.53 : 5,191.35 = 2,189.62 : x
  2. Step 2: Convert to fraction form
    3,761.53/5,191.35 = 2,189.62/x
  3. Step 3: Cross multiply
    3,761.53x = 5,191.35 × 2,189.62
  4. Step 4: Simplify right side
    3,761.53x = 11,367,083.79
  5. Step 5: Solve for x
    x = 11,367,083.79/3,761.53
  6. Step 6: Final answer
    x = 3,021.93

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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.