Home / 3,278.22-4,520.22-2,490.90

Finding the Fourth Proportional to 3,278.22, 4,520.22 and 2,490.90

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Solution

The fourth proportional to 3,278.22, 4,520.22 and 2,490.90 is: 3,434.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.22 : 4,520.22 = 2,490.90 : x
  2. Step 2: Convert to fraction form
    3,278.22/4,520.22 = 2,490.90/x
  3. Step 3: Cross multiply
    3,278.22x = 4,520.22 × 2,490.90
  4. Step 4: Simplify right side
    3,278.22x = 11,259,416.00
  5. Step 5: Solve for x
    x = 11,259,416.00/3,278.22
  6. Step 6: Final answer
    x = 3,434.61

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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.