Home / 3,208.26-4,429.44-2,620.20

Finding the Fourth Proportional to 3,208.26, 4,429.44 and 2,620.20

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Solution

The fourth proportional to 3,208.26, 4,429.44 and 2,620.20 is: 3,617.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.26 : 4,429.44 = 2,620.20 : x
  2. Step 2: Convert to fraction form
    3,208.26/4,429.44 = 2,620.20/x
  3. Step 3: Cross multiply
    3,208.26x = 4,429.44 × 2,620.20
  4. Step 4: Simplify right side
    3,208.26x = 11,606,018.69
  5. Step 5: Solve for x
    x = 11,606,018.69/3,208.26
  6. Step 6: Final answer
    x = 3,617.54

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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.