Home / 3,185.46-4,778.10-1,238.04

Finding the Fourth Proportional to 3,185.46, 4,778.10 and 1,238.04

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Solution

The fourth proportional to 3,185.46, 4,778.10 and 1,238.04 is: 1,857.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.46 : 4,778.10 = 1,238.04 : x
  2. Step 2: Convert to fraction form
    3,185.46/4,778.10 = 1,238.04/x
  3. Step 3: Cross multiply
    3,185.46x = 4,778.10 × 1,238.04
  4. Step 4: Simplify right side
    3,185.46x = 5,915,478.92
  5. Step 5: Solve for x
    x = 5,915,478.92/3,185.46
  6. Step 6: Final answer
    x = 1,857.03

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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.