Home / 2,236.11-3,354.17-919.81

Finding the Fourth Proportional to 2,236.11, 3,354.17 and 919.81

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Solution

The fourth proportional to 2,236.11, 3,354.17 and 919.81 is: 1,379.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,236.11 : 3,354.17 = 919.81 : x
  2. Step 2: Convert to fraction form
    2,236.11/3,354.17 = 919.81/x
  3. Step 3: Cross multiply
    2,236.11x = 3,354.17 × 919.81
  4. Step 4: Simplify right side
    2,236.11x = 3,085,214.60
  5. Step 5: Solve for x
    x = 3,085,214.60/2,236.11
  6. Step 6: Final answer
    x = 1,379.72

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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.