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Finding the Fourth Proportional to 3,198.87, 4,798.95 and 1,349.98

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Solution

The fourth proportional to 3,198.87, 4,798.95 and 1,349.98 is: 2,025.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.87 : 4,798.95 = 1,349.98 : x
  2. Step 2: Convert to fraction form
    3,198.87/4,798.95 = 1,349.98/x
  3. Step 3: Cross multiply
    3,198.87x = 4,798.95 × 1,349.98
  4. Step 4: Simplify right side
    3,198.87x = 6,478,486.52
  5. Step 5: Solve for x
    x = 6,478,486.52/3,198.87
  6. Step 6: Final answer
    x = 2,025.24

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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.