Home / 3,198.47-4,785.82-2,806.63

Finding the Fourth Proportional to 3,198.47, 4,785.82 and 2,806.63

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Solution

The fourth proportional to 3,198.47, 4,785.82 and 2,806.63 is: 4,199.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.47 : 4,785.82 = 2,806.63 : x
  2. Step 2: Convert to fraction form
    3,198.47/4,785.82 = 2,806.63/x
  3. Step 3: Cross multiply
    3,198.47x = 4,785.82 × 2,806.63
  4. Step 4: Simplify right side
    3,198.47x = 13,432,025.99
  5. Step 5: Solve for x
    x = 13,432,025.99/3,198.47
  6. Step 6: Final answer
    x = 4,199.52

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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.