Home / 3,290.19-4,540.39-1,798.09

Finding the Fourth Proportional to 3,290.19, 4,540.39 and 1,798.09

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Solution

The fourth proportional to 3,290.19, 4,540.39 and 1,798.09 is: 2,481.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.19 : 4,540.39 = 1,798.09 : x
  2. Step 2: Convert to fraction form
    3,290.19/4,540.39 = 1,798.09/x
  3. Step 3: Cross multiply
    3,290.19x = 4,540.39 × 1,798.09
  4. Step 4: Simplify right side
    3,290.19x = 8,164,026.78
  5. Step 5: Solve for x
    x = 8,164,026.78/3,290.19
  6. Step 6: Final answer
    x = 2,481.33

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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.