Home / 3,290.66-4,538.97-2,109.86

Finding the Fourth Proportional to 3,290.66, 4,538.97 and 2,109.86

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Solution

The fourth proportional to 3,290.66, 4,538.97 and 2,109.86 is: 2,910.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.66 : 4,538.97 = 2,109.86 : x
  2. Step 2: Convert to fraction form
    3,290.66/4,538.97 = 2,109.86/x
  3. Step 3: Cross multiply
    3,290.66x = 4,538.97 × 2,109.86
  4. Step 4: Simplify right side
    3,290.66x = 9,576,591.24
  5. Step 5: Solve for x
    x = 9,576,591.24/3,290.66
  6. Step 6: Final answer
    x = 2,910.23

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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.