Home / 3,086.31-4,259.03-1,891.77

Finding the Fourth Proportional to 3,086.31, 4,259.03 and 1,891.77

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Solution

The fourth proportional to 3,086.31, 4,259.03 and 1,891.77 is: 2,610.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.31 : 4,259.03 = 1,891.77 : x
  2. Step 2: Convert to fraction form
    3,086.31/4,259.03 = 1,891.77/x
  3. Step 3: Cross multiply
    3,086.31x = 4,259.03 × 1,891.77
  4. Step 4: Simplify right side
    3,086.31x = 8,057,105.18
  5. Step 5: Solve for x
    x = 8,057,105.18/3,086.31
  6. Step 6: Final answer
    x = 2,610.59

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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.