Home / 3,198.92-4,798.86-1,638.04

Finding the Fourth Proportional to 3,198.92, 4,798.86 and 1,638.04

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Solution

The fourth proportional to 3,198.92, 4,798.86 and 1,638.04 is: 2,457.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.92 : 4,798.86 = 1,638.04 : x
  2. Step 2: Convert to fraction form
    3,198.92/4,798.86 = 1,638.04/x
  3. Step 3: Cross multiply
    3,198.92x = 4,798.86 × 1,638.04
  4. Step 4: Simplify right side
    3,198.92x = 7,860,724.63
  5. Step 5: Solve for x
    x = 7,860,724.63/3,198.92
  6. Step 6: Final answer
    x = 2,457.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.