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Finding the Fourth Proportional to 5,299.82, 7,314 and 2,942

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Solution

The fourth proportional to 5,299.82, 7,314 and 2,942 is: 4,060.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,299.82 : 7,314 = 2,942 : x
  2. Step 2: Convert to fraction form
    5,299.82/7,314 = 2,942/x
  3. Step 3: Cross multiply
    5,299.82x = 7,314 × 2,942
  4. Step 4: Simplify right side
    5,299.82x = 21,517,788
  5. Step 5: Solve for x
    x = 21,517,788/5,299.82
  6. Step 6: Final answer
    x = 4,060.10

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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.