Home / 3,086.85-4,259.76-1,891.41

Finding the Fourth Proportional to 3,086.85, 4,259.76 and 1,891.41

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Solution

The fourth proportional to 3,086.85, 4,259.76 and 1,891.41 is: 2,610.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.85 : 4,259.76 = 1,891.41 : x
  2. Step 2: Convert to fraction form
    3,086.85/4,259.76 = 1,891.41/x
  3. Step 3: Cross multiply
    3,086.85x = 4,259.76 × 1,891.41
  4. Step 4: Simplify right side
    3,086.85x = 8,056,952.66
  5. Step 5: Solve for x
    x = 8,056,952.66/3,086.85
  6. Step 6: Final answer
    x = 2,610.09

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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.