Home / 3,859.20-5,785.44-2,213.52

Finding the Fourth Proportional to 3,859.20, 5,785.44 and 2,213.52

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Solution

The fourth proportional to 3,859.20, 5,785.44 and 2,213.52 is: 3,318.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.20 : 5,785.44 = 2,213.52 : x
  2. Step 2: Convert to fraction form
    3,859.20/5,785.44 = 2,213.52/x
  3. Step 3: Cross multiply
    3,859.20x = 5,785.44 × 2,213.52
  4. Step 4: Simplify right side
    3,859.20x = 12,806,187.15
  5. Step 5: Solve for x
    x = 12,806,187.15/3,859.20
  6. Step 6: Final answer
    x = 3,318.35

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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.