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Finding the Fourth Proportional to 3,538.68, 5,308.02 and 1,198.68

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Solution

The fourth proportional to 3,538.68, 5,308.02 and 1,198.68 is: 1,798.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,538.68 : 5,308.02 = 1,198.68 : x
  2. Step 2: Convert to fraction form
    3,538.68/5,308.02 = 1,198.68/x
  3. Step 3: Cross multiply
    3,538.68x = 5,308.02 × 1,198.68
  4. Step 4: Simplify right side
    3,538.68x = 6,362,617.41
  5. Step 5: Solve for x
    x = 6,362,617.41/3,538.68
  6. Step 6: Final answer
    x = 1,798.02

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