Home / 4,120.22-6,181.65-1,198.70

Finding the Fourth Proportional to 4,120.22, 6,181.65 and 1,198.70

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Solution

The fourth proportional to 4,120.22, 6,181.65 and 1,198.70 is: 1,798.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.22 : 6,181.65 = 1,198.70 : x
  2. Step 2: Convert to fraction form
    4,120.22/6,181.65 = 1,198.70/x
  3. Step 3: Cross multiply
    4,120.22x = 6,181.65 × 1,198.70
  4. Step 4: Simplify right side
    4,120.22x = 7,409,943.86
  5. Step 5: Solve for x
    x = 7,409,943.86/4,120.22
  6. Step 6: Final answer
    x = 1,798.43

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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.