Home / 3,309.91-4,963.36-1,976.31

Finding the Fourth Proportional to 3,309.91, 4,963.36 and 1,976.31

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Solution

The fourth proportional to 3,309.91, 4,963.36 and 1,976.31 is: 2,963.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,309.91 : 4,963.36 = 1,976.31 : x
  2. Step 2: Convert to fraction form
    3,309.91/4,963.36 = 1,976.31/x
  3. Step 3: Cross multiply
    3,309.91x = 4,963.36 × 1,976.31
  4. Step 4: Simplify right side
    3,309.91x = 9,809,151.11
  5. Step 5: Solve for x
    x = 9,809,151.11/3,309.91
  6. Step 6: Final answer
    x = 2,963.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.