Home / 2,943.63-4,418.69-2,640.69

Finding the Fourth Proportional to 2,943.63, 4,418.69 and 2,640.69

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Solution

The fourth proportional to 2,943.63, 4,418.69 and 2,640.69 is: 3,963.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,943.63 : 4,418.69 = 2,640.69 : x
  2. Step 2: Convert to fraction form
    2,943.63/4,418.69 = 2,640.69/x
  3. Step 3: Cross multiply
    2,943.63x = 4,418.69 × 2,640.69
  4. Step 4: Simplify right side
    2,943.63x = 11,668,377.29
  5. Step 5: Solve for x
    x = 11,668,377.29/2,943.63
  6. Step 6: Final answer
    x = 3,963.94

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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.