Home / 3,833.05-5,289.54-2,131.66

Finding the Fourth Proportional to 3,833.05, 5,289.54 and 2,131.66

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Solution

The fourth proportional to 3,833.05, 5,289.54 and 2,131.66 is: 2,941.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,833.05 : 5,289.54 = 2,131.66 : x
  2. Step 2: Convert to fraction form
    3,833.05/5,289.54 = 2,131.66/x
  3. Step 3: Cross multiply
    3,833.05x = 5,289.54 × 2,131.66
  4. Step 4: Simplify right side
    3,833.05x = 11,275,500.84
  5. Step 5: Solve for x
    x = 11,275,500.84/3,833.05
  6. Step 6: Final answer
    x = 2,941.65

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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.