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Finding the Fourth Proportional to 3,197.82, 4,798.12 and 1,119.32

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Solution

The fourth proportional to 3,197.82, 4,798.12 and 1,119.32 is: 1,679.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,197.82 : 4,798.12 = 1,119.32 : x
  2. Step 2: Convert to fraction form
    3,197.82/4,798.12 = 1,119.32/x
  3. Step 3: Cross multiply
    3,197.82x = 4,798.12 × 1,119.32
  4. Step 4: Simplify right side
    3,197.82x = 5,370,607.69
  5. Step 5: Solve for x
    x = 5,370,607.69/3,197.82
  6. Step 6: Final answer
    x = 1,679.46

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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.