Home / 3,785.54-5,221.89-2,272.70

Finding the Fourth Proportional to 3,785.54, 5,221.89 and 2,272.70

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Solution

The fourth proportional to 3,785.54, 5,221.89 and 2,272.70 is: 3,135.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.54 : 5,221.89 = 2,272.70 : x
  2. Step 2: Convert to fraction form
    3,785.54/5,221.89 = 2,272.70/x
  3. Step 3: Cross multiply
    3,785.54x = 5,221.89 × 2,272.70
  4. Step 4: Simplify right side
    3,785.54x = 11,867,802.46
  5. Step 5: Solve for x
    x = 11,867,802.46/3,785.54
  6. Step 6: Final answer
    x = 3,135.03

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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.