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Finding the Fourth Proportional to 7,193.76, 10,790.64 and 1,999.64

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Solution

The fourth proportional to 7,193.76, 10,790.64 and 1,999.64 is: 2,999.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,193.76 : 10,790.64 = 1,999.64 : x
  2. Step 2: Convert to fraction form
    7,193.76/10,790.64 = 1,999.64/x
  3. Step 3: Cross multiply
    7,193.76x = 10,790.64 × 1,999.64
  4. Step 4: Simplify right side
    7,193.76x = 21,577,395.37
  5. Step 5: Solve for x
    x = 21,577,395.37/7,193.76
  6. Step 6: Final answer
    x = 2,999.46

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