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Finding the Fourth Proportional to 3,205.72, 4,424.02 and 1,879.24

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Solution

The fourth proportional to 3,205.72, 4,424.02 and 1,879.24 is: 2,593.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,205.72 : 4,424.02 = 1,879.24 : x
  2. Step 2: Convert to fraction form
    3,205.72/4,424.02 = 1,879.24/x
  3. Step 3: Cross multiply
    3,205.72x = 4,424.02 × 1,879.24
  4. Step 4: Simplify right side
    3,205.72x = 8,313,795.34
  5. Step 5: Solve for x
    x = 8,313,795.34/3,205.72
  6. Step 6: Final answer
    x = 2,593.43

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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.