Home / 6,087.80-9,131.70-2,191.43

Finding the Fourth Proportional to 6,087.80, 9,131.70 and 2,191.43

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Solution

The fourth proportional to 6,087.80, 9,131.70 and 2,191.43 is: 3,287.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,087.80 : 9,131.70 = 2,191.43 : x
  2. Step 2: Convert to fraction form
    6,087.80/9,131.70 = 2,191.43/x
  3. Step 3: Cross multiply
    6,087.80x = 9,131.70 × 2,191.43
  4. Step 4: Simplify right side
    6,087.80x = 20,011,481.33
  5. Step 5: Solve for x
    x = 20,011,481.33/6,087.80
  6. Step 6: Final answer
    x = 3,287.15

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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.