Home / 2,224.50-3,336.75-1,128.90

Finding the Fourth Proportional to 2,224.50, 3,336.75 and 1,128.90

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Solution

The fourth proportional to 2,224.50, 3,336.75 and 1,128.90 is: 1,693.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,224.50 : 3,336.75 = 1,128.90 : x
  2. Step 2: Convert to fraction form
    2,224.50/3,336.75 = 1,128.90/x
  3. Step 3: Cross multiply
    2,224.50x = 3,336.75 × 1,128.90
  4. Step 4: Simplify right side
    2,224.50x = 3,766,857.08
  5. Step 5: Solve for x
    x = 3,766,857.08/2,224.50
  6. Step 6: Final answer
    x = 1,693.35

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Double scale
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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.