Home / 4,138.20-6,198.39-1,943.64

Finding the Fourth Proportional to 4,138.20, 6,198.39 and 1,943.64

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Solution

The fourth proportional to 4,138.20, 6,198.39 and 1,943.64 is: 2,911.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.20 : 6,198.39 = 1,943.64 : x
  2. Step 2: Convert to fraction form
    4,138.20/6,198.39 = 1,943.64/x
  3. Step 3: Cross multiply
    4,138.20x = 6,198.39 × 1,943.64
  4. Step 4: Simplify right side
    4,138.20x = 12,047,438.74
  5. Step 5: Solve for x
    x = 12,047,438.74/4,138.20
  6. Step 6: Final answer
    x = 2,911.28

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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.