Home / 3,205.71-4,423.88-1,879.43

Finding the Fourth Proportional to 3,205.71, 4,423.88 and 1,879.43

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Solution

The fourth proportional to 3,205.71, 4,423.88 and 1,879.43 is: 2,593.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.71 : 4,423.88 = 1,879.43 : x
  2. Step 2: Convert to fraction form
    3,205.71/4,423.88 = 1,879.43/x
  3. Step 3: Cross multiply
    3,205.71x = 4,423.88 × 1,879.43
  4. Step 4: Simplify right side
    3,205.71x = 8,314,355.37
  5. Step 5: Solve for x
    x = 8,314,355.37/3,205.71
  6. Step 6: Final answer
    x = 2,593.61

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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.