Home / 3,182.26-4,390.63-1,905.62

Finding the Fourth Proportional to 3,182.26, 4,390.63 and 1,905.62

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Solution

The fourth proportional to 3,182.26, 4,390.63 and 1,905.62 is: 2,629.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,182.26 : 4,390.63 = 1,905.62 : x
  2. Step 2: Convert to fraction form
    3,182.26/4,390.63 = 1,905.62/x
  3. Step 3: Cross multiply
    3,182.26x = 4,390.63 × 1,905.62
  4. Step 4: Simplify right side
    3,182.26x = 8,366,845.62
  5. Step 5: Solve for x
    x = 8,366,845.62/3,182.26
  6. Step 6: Final answer
    x = 2,629.22

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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.