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Finding the Fourth Proportional to 5,621.20, 8,372.56 and 5,368.48

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Solution

The fourth proportional to 5,621.20, 8,372.56 and 5,368.48 is: 7,996.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.20 : 8,372.56 = 5,368.48 : x
  2. Step 2: Convert to fraction form
    5,621.20/8,372.56 = 5,368.48/x
  3. Step 3: Cross multiply
    5,621.20x = 8,372.56 × 5,368.48
  4. Step 4: Simplify right side
    5,621.20x = 44,947,920.91
  5. Step 5: Solve for x
    x = 44,947,920.91/5,621.20
  6. Step 6: Final answer
    x = 7,996.14

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.