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Finding the Fourth Proportional to 5,375.44, 7,427.73 and 5,156.74

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Solution

The fourth proportional to 5,375.44, 7,427.73 and 5,156.74 is: 7,125.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,375.44 : 7,427.73 = 5,156.74 : x
  2. Step 2: Convert to fraction form
    5,375.44/7,427.73 = 5,156.74/x
  3. Step 3: Cross multiply
    5,375.44x = 7,427.73 × 5,156.74
  4. Step 4: Simplify right side
    5,375.44x = 38,302,872.40
  5. Step 5: Solve for x
    x = 38,302,872.40/5,375.44
  6. Step 6: Final answer
    x = 7,125.53

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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.