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Finding the Fourth Proportional to 5,342.78, 7,373.44 and 3,074.82

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Solution

The fourth proportional to 5,342.78, 7,373.44 and 3,074.82 is: 4,243.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,342.78 : 7,373.44 = 3,074.82 : x
  2. Step 2: Convert to fraction form
    5,342.78/7,373.44 = 3,074.82/x
  3. Step 3: Cross multiply
    5,342.78x = 7,373.44 × 3,074.82
  4. Step 4: Simplify right side
    5,342.78x = 22,672,000.78
  5. Step 5: Solve for x
    x = 22,672,000.78/5,342.78
  6. Step 6: Final answer
    x = 4,243.48

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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.