Home / 3,511.29-4,845.59-1,917.96

Finding the Fourth Proportional to 3,511.29, 4,845.59 and 1,917.96

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Solution

The fourth proportional to 3,511.29, 4,845.59 and 1,917.96 is: 2,646.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.29 : 4,845.59 = 1,917.96 : x
  2. Step 2: Convert to fraction form
    3,511.29/4,845.59 = 1,917.96/x
  3. Step 3: Cross multiply
    3,511.29x = 4,845.59 × 1,917.96
  4. Step 4: Simplify right side
    3,511.29x = 9,293,627.23
  5. Step 5: Solve for x
    x = 9,293,627.23/3,511.29
  6. Step 6: Final answer
    x = 2,646.78

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Why These Related Problems?

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