Home / 4,120.50-6,180.75-1,198.83

Finding the Fourth Proportional to 4,120.50, 6,180.75 and 1,198.83

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Solution

The fourth proportional to 4,120.50, 6,180.75 and 1,198.83 is: 1,798.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.50 : 6,180.75 = 1,198.83 : x
  2. Step 2: Convert to fraction form
    4,120.50/6,180.75 = 1,198.83/x
  3. Step 3: Cross multiply
    4,120.50x = 6,180.75 × 1,198.83
  4. Step 4: Simplify right side
    4,120.50x = 7,409,668.52
  5. Step 5: Solve for x
    x = 7,409,668.52/4,120.50
  6. Step 6: Final answer
    x = 1,798.25

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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.