Home / 7,786.82-11,679.85-2,240.12

Finding the Fourth Proportional to 7,786.82, 11,679.85 and 2,240.12

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Solution

The fourth proportional to 7,786.82, 11,679.85 and 2,240.12 is: 3,360.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.82 : 11,679.85 = 2,240.12 : x
  2. Step 2: Convert to fraction form
    7,786.82/11,679.85 = 2,240.12/x
  3. Step 3: Cross multiply
    7,786.82x = 11,679.85 × 2,240.12
  4. Step 4: Simplify right side
    7,786.82x = 26,164,289.18
  5. Step 5: Solve for x
    x = 26,164,289.18/7,786.82
  6. Step 6: Final answer
    x = 3,360.07

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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.