Home / 3,843.42-5,765.70-1,377.66

Finding the Fourth Proportional to 3,843.42, 5,765.70 and 1,377.66

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Solution

The fourth proportional to 3,843.42, 5,765.70 and 1,377.66 is: 2,066.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,843.42 : 5,765.70 = 1,377.66 : x
  2. Step 2: Convert to fraction form
    3,843.42/5,765.70 = 1,377.66/x
  3. Step 3: Cross multiply
    3,843.42x = 5,765.70 × 1,377.66
  4. Step 4: Simplify right side
    3,843.42x = 7,943,174.26
  5. Step 5: Solve for x
    x = 7,943,174.26/3,843.42
  6. Step 6: Final answer
    x = 2,066.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.