Home / 3,190.98-4,786.37-1,631.63

Finding the Fourth Proportional to 3,190.98, 4,786.37 and 1,631.63

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Solution

The fourth proportional to 3,190.98, 4,786.37 and 1,631.63 is: 2,447.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.98 : 4,786.37 = 1,631.63 : x
  2. Step 2: Convert to fraction form
    3,190.98/4,786.37 = 1,631.63/x
  3. Step 3: Cross multiply
    3,190.98x = 4,786.37 × 1,631.63
  4. Step 4: Simplify right side
    3,190.98x = 7,809,584.88
  5. Step 5: Solve for x
    x = 7,809,584.88/3,190.98
  6. Step 6: Final answer
    x = 2,447.39

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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.