Home / 4,939.63-6,815.41-2,949.31

Finding the Fourth Proportional to 4,939.63, 6,815.41 and 2,949.31

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Solution

The fourth proportional to 4,939.63, 6,815.41 and 2,949.31 is: 4,069.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939.63 : 6,815.41 = 2,949.31 : x
  2. Step 2: Convert to fraction form
    4,939.63/6,815.41 = 2,949.31/x
  3. Step 3: Cross multiply
    4,939.63x = 6,815.41 × 2,949.31
  4. Step 4: Simplify right side
    4,939.63x = 20,100,756.87
  5. Step 5: Solve for x
    x = 20,100,756.87/4,939.63
  6. Step 6: Final answer
    x = 4,069.28

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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.