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Finding the Fourth Proportional to 5,678.22, 7,833.42 and 3,438.66

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Solution

The fourth proportional to 5,678.22, 7,833.42 and 3,438.66 is: 4,743.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.22 : 7,833.42 = 3,438.66 : x
  2. Step 2: Convert to fraction form
    5,678.22/7,833.42 = 3,438.66/x
  3. Step 3: Cross multiply
    5,678.22x = 7,833.42 × 3,438.66
  4. Step 4: Simplify right side
    5,678.22x = 26,936,468.02
  5. Step 5: Solve for x
    x = 26,936,468.02/5,678.22
  6. Step 6: Final answer
    x = 4,743.82

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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.