Home / 3,859.39-5,789.34-1,911.07

Finding the Fourth Proportional to 3,859.39, 5,789.34 and 1,911.07

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Solution

The fourth proportional to 3,859.39, 5,789.34 and 1,911.07 is: 2,866.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.39 : 5,789.34 = 1,911.07 : x
  2. Step 2: Convert to fraction form
    3,859.39/5,789.34 = 1,911.07/x
  3. Step 3: Cross multiply
    3,859.39x = 5,789.34 × 1,911.07
  4. Step 4: Simplify right side
    3,859.39x = 11,063,833.99
  5. Step 5: Solve for x
    x = 11,063,833.99/3,859.39
  6. Step 6: Final answer
    x = 2,866.73

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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.