Home / 7,738.09-11,606.41-2,191.31

Finding the Fourth Proportional to 7,738.09, 11,606.41 and 2,191.31

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Solution

The fourth proportional to 7,738.09, 11,606.41 and 2,191.31 is: 3,286.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.09 : 11,606.41 = 2,191.31 : x
  2. Step 2: Convert to fraction form
    7,738.09/11,606.41 = 2,191.31/x
  3. Step 3: Cross multiply
    7,738.09x = 11,606.41 × 2,191.31
  4. Step 4: Simplify right side
    7,738.09x = 25,433,178.79
  5. Step 5: Solve for x
    x = 25,433,178.79/7,738.09
  6. Step 6: Final answer
    x = 3,286.75

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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.