Home / 4,231.70-6,335.40-3,991.40

Finding the Fourth Proportional to 4,231.70, 6,335.40 and 3,991.40

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Solution

The fourth proportional to 4,231.70, 6,335.40 and 3,991.40 is: 5,975.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,231.70 : 6,335.40 = 3,991.40 : x
  2. Step 2: Convert to fraction form
    4,231.70/6,335.40 = 3,991.40/x
  3. Step 3: Cross multiply
    4,231.70x = 6,335.40 × 3,991.40
  4. Step 4: Simplify right side
    4,231.70x = 25,287,115.56
  5. Step 5: Solve for x
    x = 25,287,115.56/4,231.70
  6. Step 6: Final answer
    x = 5,975.64

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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.