Home / 3,390.31-5,085.23-1,198.75

Finding the Fourth Proportional to 3,390.31, 5,085.23 and 1,198.75

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Solution

The fourth proportional to 3,390.31, 5,085.23 and 1,198.75 is: 1,798.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.31 : 5,085.23 = 1,198.75 : x
  2. Step 2: Convert to fraction form
    3,390.31/5,085.23 = 1,198.75/x
  3. Step 3: Cross multiply
    3,390.31x = 5,085.23 × 1,198.75
  4. Step 4: Simplify right side
    3,390.31x = 6,095,917.03
  5. Step 5: Solve for x
    x = 6,095,917.03/3,390.31
  6. Step 6: Final answer
    x = 1,798.04

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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.