Home / 3,105.44-4,284.46-2,108.99

Finding the Fourth Proportional to 3,105.44, 4,284.46 and 2,108.99

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Solution

The fourth proportional to 3,105.44, 4,284.46 and 2,108.99 is: 2,909.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.44 : 4,284.46 = 2,108.99 : x
  2. Step 2: Convert to fraction form
    3,105.44/4,284.46 = 2,108.99/x
  3. Step 3: Cross multiply
    3,105.44x = 4,284.46 × 2,108.99
  4. Step 4: Simplify right side
    3,105.44x = 9,035,856.60
  5. Step 5: Solve for x
    x = 9,035,856.60/3,105.44
  6. Step 6: Final answer
    x = 2,909.69

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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.