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Finding the Fourth Proportional to 5,455.32, 7,528.34 and 2,971.32

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Solution

The fourth proportional to 5,455.32, 7,528.34 and 2,971.32 is: 4,100.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.32 : 7,528.34 = 2,971.32 : x
  2. Step 2: Convert to fraction form
    5,455.32/7,528.34 = 2,971.32/x
  3. Step 3: Cross multiply
    5,455.32x = 7,528.34 × 2,971.32
  4. Step 4: Simplify right side
    5,455.32x = 22,369,092.35
  5. Step 5: Solve for x
    x = 22,369,092.35/5,455.32
  6. Step 6: Final answer
    x = 4,100.42

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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.