Home / 2,224.25-3,338.46-1,129.40

Finding the Fourth Proportional to 2,224.25, 3,338.46 and 1,129.40

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Solution

The fourth proportional to 2,224.25, 3,338.46 and 1,129.40 is: 1,695.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,224.25 : 3,338.46 = 1,129.40 : x
  2. Step 2: Convert to fraction form
    2,224.25/3,338.46 = 1,129.40/x
  3. Step 3: Cross multiply
    2,224.25x = 3,338.46 × 1,129.40
  4. Step 4: Simplify right side
    2,224.25x = 3,770,440.03
  5. Step 5: Solve for x
    x = 3,770,440.03/2,224.25
  6. Step 6: Final answer
    x = 1,695.15

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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.