Home / 3,190.62-4,786.32-999.16

Finding the Fourth Proportional to 3,190.62, 4,786.32 and 999.16

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Solution

The fourth proportional to 3,190.62, 4,786.32 and 999.16 is: 1,498.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.62 : 4,786.32 = 999.16 : x
  2. Step 2: Convert to fraction form
    3,190.62/4,786.32 = 999.16/x
  3. Step 3: Cross multiply
    3,190.62x = 4,786.32 × 999.16
  4. Step 4: Simplify right side
    3,190.62x = 4,782,299.49
  5. Step 5: Solve for x
    x = 4,782,299.49/3,190.62
  6. Step 6: Final answer
    x = 1,498.86

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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.