Home / 3,190.81-4,786.89-1,610.43

Finding the Fourth Proportional to 3,190.81, 4,786.89 and 1,610.43

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Solution

The fourth proportional to 3,190.81, 4,786.89 and 1,610.43 is: 2,415.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.81 : 4,786.89 = 1,610.43 : x
  2. Step 2: Convert to fraction form
    3,190.81/4,786.89 = 1,610.43/x
  3. Step 3: Cross multiply
    3,190.81x = 4,786.89 × 1,610.43
  4. Step 4: Simplify right side
    3,190.81x = 7,708,951.26
  5. Step 5: Solve for x
    x = 7,708,951.26/3,190.81
  6. Step 6: Final answer
    x = 2,415.99

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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.