Home / 2,223.06-3,336.68-1,128.21

Finding the Fourth Proportional to 2,223.06, 3,336.68 and 1,128.21

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Solution

The fourth proportional to 2,223.06, 3,336.68 and 1,128.21 is: 1,693.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.06 : 3,336.68 = 1,128.21 : x
  2. Step 2: Convert to fraction form
    2,223.06/3,336.68 = 1,128.21/x
  3. Step 3: Cross multiply
    2,223.06x = 3,336.68 × 1,128.21
  4. Step 4: Simplify right side
    2,223.06x = 3,764,464.58
  5. Step 5: Solve for x
    x = 3,764,464.58/2,223.06
  6. Step 6: Final answer
    x = 1,693.37

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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.