Home / 3,782.94-5,220.57-2,291.13

Finding the Fourth Proportional to 3,782.94, 5,220.57 and 2,291.13

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Solution

The fourth proportional to 3,782.94, 5,220.57 and 2,291.13 is: 3,161.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,782.94 : 5,220.57 = 2,291.13 : x
  2. Step 2: Convert to fraction form
    3,782.94/5,220.57 = 2,291.13/x
  3. Step 3: Cross multiply
    3,782.94x = 5,220.57 × 2,291.13
  4. Step 4: Simplify right side
    3,782.94x = 11,961,004.54
  5. Step 5: Solve for x
    x = 11,961,004.54/3,782.94
  6. Step 6: Final answer
    x = 3,161.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.