Home / 3,091.88-4,640.25-1,609.58

Finding the Fourth Proportional to 3,091.88, 4,640.25 and 1,609.58

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Solution

The fourth proportional to 3,091.88, 4,640.25 and 1,609.58 is: 2,415.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,091.88 : 4,640.25 = 1,609.58 : x
  2. Step 2: Convert to fraction form
    3,091.88/4,640.25 = 1,609.58/x
  3. Step 3: Cross multiply
    3,091.88x = 4,640.25 × 1,609.58
  4. Step 4: Simplify right side
    3,091.88x = 7,468,853.60
  5. Step 5: Solve for x
    x = 7,468,853.60/3,091.88
  6. Step 6: Final answer
    x = 2,415.64

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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.