Home / 3,190.35-4,782.69-1,108.65

Finding the Fourth Proportional to 3,190.35, 4,782.69 and 1,108.65

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Solution

The fourth proportional to 3,190.35, 4,782.69 and 1,108.65 is: 1,661.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,190.35 : 4,782.69 = 1,108.65 : x
  2. Step 2: Convert to fraction form
    3,190.35/4,782.69 = 1,108.65/x
  3. Step 3: Cross multiply
    3,190.35x = 4,782.69 × 1,108.65
  4. Step 4: Simplify right side
    3,190.35x = 5,302,329.27
  5. Step 5: Solve for x
    x = 5,302,329.27/3,190.35
  6. Step 6: Final answer
    x = 1,661.99

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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.