Home / 3,529.44-4,869.36-2,131.68

Finding the Fourth Proportional to 3,529.44, 4,869.36 and 2,131.68

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Solution

The fourth proportional to 3,529.44, 4,869.36 and 2,131.68 is: 2,940.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,529.44 : 4,869.36 = 2,131.68 : x
  2. Step 2: Convert to fraction form
    3,529.44/4,869.36 = 2,131.68/x
  3. Step 3: Cross multiply
    3,529.44x = 4,869.36 × 2,131.68
  4. Step 4: Simplify right side
    3,529.44x = 10,379,917.32
  5. Step 5: Solve for x
    x = 10,379,917.32/3,529.44
  6. Step 6: Final answer
    x = 2,940.95

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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.