Home / 3,791.12-5,231.48-2,089.56

Finding the Fourth Proportional to 3,791.12, 5,231.48 and 2,089.56

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Solution

The fourth proportional to 3,791.12, 5,231.48 and 2,089.56 is: 2,883.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791.12 : 5,231.48 = 2,089.56 : x
  2. Step 2: Convert to fraction form
    3,791.12/5,231.48 = 2,089.56/x
  3. Step 3: Cross multiply
    3,791.12x = 5,231.48 × 2,089.56
  4. Step 4: Simplify right side
    3,791.12x = 10,931,496.57
  5. Step 5: Solve for x
    x = 10,931,496.57/3,791.12
  6. Step 6: Final answer
    x = 2,883.45

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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.