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Finding the Fourth Proportional to 3,570.96, 4,928.06 and 1,998.96

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Solution

The fourth proportional to 3,570.96, 4,928.06 and 1,998.96 is: 2,758.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,570.96 : 4,928.06 = 1,998.96 : x
  2. Step 2: Convert to fraction form
    3,570.96/4,928.06 = 1,998.96/x
  3. Step 3: Cross multiply
    3,570.96x = 4,928.06 × 1,998.96
  4. Step 4: Simplify right side
    3,570.96x = 9,850,984.82
  5. Step 5: Solve for x
    x = 9,850,984.82/3,570.96
  6. Step 6: Final answer
    x = 2,758.64

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.