Home / 3,190.06-4,786.80-2,147.50

Finding the Fourth Proportional to 3,190.06, 4,786.80 and 2,147.50

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Solution

The fourth proportional to 3,190.06, 4,786.80 and 2,147.50 is: 3,222.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.06 : 4,786.80 = 2,147.50 : x
  2. Step 2: Convert to fraction form
    3,190.06/4,786.80 = 2,147.50/x
  3. Step 3: Cross multiply
    3,190.06x = 4,786.80 × 2,147.50
  4. Step 4: Simplify right side
    3,190.06x = 10,279,653
  5. Step 5: Solve for x
    x = 10,279,653/3,190.06
  6. Step 6: Final answer
    x = 3,222.40

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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.