Home / 3,198.15-4,411.87-2,755.28

Finding the Fourth Proportional to 3,198.15, 4,411.87 and 2,755.28

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Solution

The fourth proportional to 3,198.15, 4,411.87 and 2,755.28 is: 3,800.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.15 : 4,411.87 = 2,755.28 : x
  2. Step 2: Convert to fraction form
    3,198.15/4,411.87 = 2,755.28/x
  3. Step 3: Cross multiply
    3,198.15x = 4,411.87 × 2,755.28
  4. Step 4: Simplify right side
    3,198.15x = 12,155,941.32
  5. Step 5: Solve for x
    x = 12,155,941.32/3,198.15
  6. Step 6: Final answer
    x = 3,800.93

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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.