Home / 4,190.90-6,286.35-2,731.70

Finding the Fourth Proportional to 4,190.90, 6,286.35 and 2,731.70

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Solution

The fourth proportional to 4,190.90, 6,286.35 and 2,731.70 is: 4,097.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,190.90 : 6,286.35 = 2,731.70 : x
  2. Step 2: Convert to fraction form
    4,190.90/6,286.35 = 2,731.70/x
  3. Step 3: Cross multiply
    4,190.90x = 6,286.35 × 2,731.70
  4. Step 4: Simplify right side
    4,190.90x = 17,172,422.30
  5. Step 5: Solve for x
    x = 17,172,422.30/4,190.90
  6. Step 6: Final answer
    x = 4,097.55

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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.