Home / 3,772.09-5,204.70-2,279.72

Finding the Fourth Proportional to 3,772.09, 5,204.70 and 2,279.72

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Solution

The fourth proportional to 3,772.09, 5,204.70 and 2,279.72 is: 3,145.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,772.09 : 5,204.70 = 2,279.72 : x
  2. Step 2: Convert to fraction form
    3,772.09/5,204.70 = 2,279.72/x
  3. Step 3: Cross multiply
    3,772.09x = 5,204.70 × 2,279.72
  4. Step 4: Simplify right side
    3,772.09x = 11,865,258.68
  5. Step 5: Solve for x
    x = 11,865,258.68/3,772.09
  6. Step 6: Final answer
    x = 3,145.54

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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.