Home / 2,109.26-2,910.29-1,224.54

Finding the Fourth Proportional to 2,109.26, 2,910.29 and 1,224.54

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Solution

The fourth proportional to 2,109.26, 2,910.29 and 1,224.54 is: 1,689.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109.26 : 2,910.29 = 1,224.54 : x
  2. Step 2: Convert to fraction form
    2,109.26/2,910.29 = 1,224.54/x
  3. Step 3: Cross multiply
    2,109.26x = 2,910.29 × 1,224.54
  4. Step 4: Simplify right side
    2,109.26x = 3,563,760.39
  5. Step 5: Solve for x
    x = 3,563,760.39/2,109.26
  6. Step 6: Final answer
    x = 1,689.58

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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.