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Finding the Fourth Proportional to 5,356.53, 7,391.96 and 2,998.70

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Solution

The fourth proportional to 5,356.53, 7,391.96 and 2,998.70 is: 4,138.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,356.53 : 7,391.96 = 2,998.70 : x
  2. Step 2: Convert to fraction form
    5,356.53/7,391.96 = 2,998.70/x
  3. Step 3: Cross multiply
    5,356.53x = 7,391.96 × 2,998.70
  4. Step 4: Simplify right side
    5,356.53x = 22,166,218.50
  5. Step 5: Solve for x
    x = 22,166,218.50/5,356.53
  6. Step 6: Final answer
    x = 4,138.17

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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.