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Finding the Fourth Proportional to 6,191.88, 9,289.25 and 2,087.88

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Solution

The fourth proportional to 6,191.88, 9,289.25 and 2,087.88 is: 3,132.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,191.88 : 9,289.25 = 2,087.88 : x
  2. Step 2: Convert to fraction form
    6,191.88/9,289.25 = 2,087.88/x
  3. Step 3: Cross multiply
    6,191.88x = 9,289.25 × 2,087.88
  4. Step 4: Simplify right side
    6,191.88x = 19,394,839.29
  5. Step 5: Solve for x
    x = 19,394,839.29/6,191.88
  6. Step 6: Final answer
    x = 3,132.30

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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.