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Finding the Fourth Proportional to 5,394.74, 7,445.31 and 3,157.34

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Solution

The fourth proportional to 5,394.74, 7,445.31 and 3,157.34 is: 4,357.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,394.74 : 7,445.31 = 3,157.34 : x
  2. Step 2: Convert to fraction form
    5,394.74/7,445.31 = 3,157.34/x
  3. Step 3: Cross multiply
    5,394.74x = 7,445.31 × 3,157.34
  4. Step 4: Simplify right side
    5,394.74x = 23,507,375.08
  5. Step 5: Solve for x
    x = 23,507,375.08/5,394.74
  6. Step 6: Final answer
    x = 4,357.46

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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.