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Finding the Fourth Proportional to 3,112.44, 4,295.22 and 1,715.22

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Solution

The fourth proportional to 3,112.44, 4,295.22 and 1,715.22 is: 2,367.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.44 : 4,295.22 = 1,715.22 : x
  2. Step 2: Convert to fraction form
    3,112.44/4,295.22 = 1,715.22/x
  3. Step 3: Cross multiply
    3,112.44x = 4,295.22 × 1,715.22
  4. Step 4: Simplify right side
    3,112.44x = 7,367,247.25
  5. Step 5: Solve for x
    x = 7,367,247.25/3,112.44
  6. Step 6: Final answer
    x = 2,367.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.