Home / 4,778.94-7,169.49-1,857.27

Finding the Fourth Proportional to 4,778.94, 7,169.49 and 1,857.27

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Solution

The fourth proportional to 4,778.94, 7,169.49 and 1,857.27 is: 2,786.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,778.94 : 7,169.49 = 1,857.27 : x
  2. Step 2: Convert to fraction form
    4,778.94/7,169.49 = 1,857.27/x
  3. Step 3: Cross multiply
    4,778.94x = 7,169.49 × 1,857.27
  4. Step 4: Simplify right side
    4,778.94x = 13,315,678.69
  5. Step 5: Solve for x
    x = 13,315,678.69/4,778.94
  6. Step 6: Final answer
    x = 2,786.32

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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.