Home / 3,382.30-5,072.73-917.15

Finding the Fourth Proportional to 3,382.30, 5,072.73 and 917.15

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Solution

The fourth proportional to 3,382.30, 5,072.73 and 917.15 is: 1,375.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,382.30 : 5,072.73 = 917.15 : x
  2. Step 2: Convert to fraction form
    3,382.30/5,072.73 = 917.15/x
  3. Step 3: Cross multiply
    3,382.30x = 5,072.73 × 917.15
  4. Step 4: Simplify right side
    3,382.30x = 4,652,428.96
  5. Step 5: Solve for x
    x = 4,652,428.96/3,382.30
  6. Step 6: Final answer
    x = 1,375.52

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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.