Home / 2,212.08-3,315.36-1,116.75

Finding the Fourth Proportional to 2,212.08, 3,315.36 and 1,116.75

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Solution

The fourth proportional to 2,212.08, 3,315.36 and 1,116.75 is: 1,673.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.08 : 3,315.36 = 1,116.75 : x
  2. Step 2: Convert to fraction form
    2,212.08/3,315.36 = 1,116.75/x
  3. Step 3: Cross multiply
    2,212.08x = 3,315.36 × 1,116.75
  4. Step 4: Simplify right side
    2,212.08x = 3,702,428.28
  5. Step 5: Solve for x
    x = 3,702,428.28/2,212.08
  6. Step 6: Final answer
    x = 1,673.73

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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.