Home / 2,805.39-3,872.22-1,626.23

Finding the Fourth Proportional to 2,805.39, 3,872.22 and 1,626.23

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Solution

The fourth proportional to 2,805.39, 3,872.22 and 1,626.23 is: 2,244.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,805.39 : 3,872.22 = 1,626.23 : x
  2. Step 2: Convert to fraction form
    2,805.39/3,872.22 = 1,626.23/x
  3. Step 3: Cross multiply
    2,805.39x = 3,872.22 × 1,626.23
  4. Step 4: Simplify right side
    2,805.39x = 6,297,133.06
  5. Step 5: Solve for x
    x = 6,297,133.06/2,805.39
  6. Step 6: Final answer
    x = 2,244.66

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.