Home / 3,290.49-4,540.86-1,798.43

Finding the Fourth Proportional to 3,290.49, 4,540.86 and 1,798.43

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Solution

The fourth proportional to 3,290.49, 4,540.86 and 1,798.43 is: 2,481.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.49 : 4,540.86 = 1,798.43 : x
  2. Step 2: Convert to fraction form
    3,290.49/4,540.86 = 1,798.43/x
  3. Step 3: Cross multiply
    3,290.49x = 4,540.86 × 1,798.43
  4. Step 4: Simplify right side
    3,290.49x = 8,166,396.15
  5. Step 5: Solve for x
    x = 8,166,396.15/3,290.49
  6. Step 6: Final answer
    x = 2,481.82

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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.