Home / 2,226.45-3,340.89-1,405.11

Finding the Fourth Proportional to 2,226.45, 3,340.89 and 1,405.11

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Solution

The fourth proportional to 2,226.45, 3,340.89 and 1,405.11 is: 2,108.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,226.45 : 3,340.89 = 1,405.11 : x
  2. Step 2: Convert to fraction form
    2,226.45/3,340.89 = 1,405.11/x
  3. Step 3: Cross multiply
    2,226.45x = 3,340.89 × 1,405.11
  4. Step 4: Simplify right side
    2,226.45x = 4,694,317.95
  5. Step 5: Solve for x
    x = 4,694,317.95/2,226.45
  6. Step 6: Final answer
    x = 2,108.43

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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.