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Finding the Fourth Proportional to 2,290.36, 3,435.92 and 751

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Solution

The fourth proportional to 2,290.36, 3,435.92 and 751 is: 1,126.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.36 : 3,435.92 = 751 : x
  2. Step 2: Convert to fraction form
    2,290.36/3,435.92 = 751/x
  3. Step 3: Cross multiply
    2,290.36x = 3,435.92 × 751
  4. Step 4: Simplify right side
    2,290.36x = 2,580,375.92
  5. Step 5: Solve for x
    x = 2,580,375.92/2,290.36
  6. Step 6: Final answer
    x = 1,126.62

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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.