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Finding the Fourth Proportional to 7,193.82, 10,790.49 and 1,999.74

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Solution

The fourth proportional to 7,193.82, 10,790.49 and 1,999.74 is: 2,999.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,193.82 : 10,790.49 = 1,999.74 : x
  2. Step 2: Convert to fraction form
    7,193.82/10,790.49 = 1,999.74/x
  3. Step 3: Cross multiply
    7,193.82x = 10,790.49 × 1,999.74
  4. Step 4: Simplify right side
    7,193.82x = 21,578,174.47
  5. Step 5: Solve for x
    x = 21,578,174.47/7,193.82
  6. Step 6: Final answer
    x = 2,999.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.