Home / 3,906.24-5,385.01-2,785.24

Finding the Fourth Proportional to 3,906.24, 5,385.01 and 2,785.24

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Solution

The fourth proportional to 3,906.24, 5,385.01 and 2,785.24 is: 3,839.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,906.24 : 5,385.01 = 2,785.24 : x
  2. Step 2: Convert to fraction form
    3,906.24/5,385.01 = 2,785.24/x
  3. Step 3: Cross multiply
    3,906.24x = 5,385.01 × 2,785.24
  4. Step 4: Simplify right side
    3,906.24x = 14,998,504.40
  5. Step 5: Solve for x
    x = 14,998,504.40/3,906.24
  6. Step 6: Final answer
    x = 3,839.63

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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.