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Finding the Fourth Proportional to 7,104.97, 10,653.17 and 2,831.35

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Solution

The fourth proportional to 7,104.97, 10,653.17 and 2,831.35 is: 4,245.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,104.97 : 10,653.17 = 2,831.35 : x
  2. Step 2: Convert to fraction form
    7,104.97/10,653.17 = 2,831.35/x
  3. Step 3: Cross multiply
    7,104.97x = 10,653.17 × 2,831.35
  4. Step 4: Simplify right side
    7,104.97x = 30,162,879.98
  5. Step 5: Solve for x
    x = 30,162,879.98/7,104.97
  6. Step 6: Final answer
    x = 4,245.32

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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.