Home / 3,761.82-5,190.42-2,269.20

Finding the Fourth Proportional to 3,761.82, 5,190.42 and 2,269.20

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Solution

The fourth proportional to 3,761.82, 5,190.42 and 2,269.20 is: 3,130.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.82 : 5,190.42 = 2,269.20 : x
  2. Step 2: Convert to fraction form
    3,761.82/5,190.42 = 2,269.20/x
  3. Step 3: Cross multiply
    3,761.82x = 5,190.42 × 2,269.20
  4. Step 4: Simplify right side
    3,761.82x = 11,778,101.06
  5. Step 5: Solve for x
    x = 11,778,101.06/3,761.82
  6. Step 6: Final answer
    x = 3,130.96

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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.