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Finding the Fourth Proportional to 5,356.62, 7,392.13 and 2,998.81

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Solution

The fourth proportional to 5,356.62, 7,392.13 and 2,998.81 is: 4,138.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,356.62 : 7,392.13 = 2,998.81 : x
  2. Step 2: Convert to fraction form
    5,356.62/7,392.13 = 2,998.81/x
  3. Step 3: Cross multiply
    5,356.62x = 7,392.13 × 2,998.81
  4. Step 4: Simplify right side
    5,356.62x = 22,167,591.19
  5. Step 5: Solve for x
    x = 22,167,591.19/5,356.62
  6. Step 6: Final answer
    x = 4,138.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.