Home / 2,939.94-4,057.32-1,943.49

Finding the Fourth Proportional to 2,939.94, 4,057.32 and 1,943.49

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Solution

The fourth proportional to 2,939.94, 4,057.32 and 1,943.49 is: 2,682.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.94 : 4,057.32 = 1,943.49 : x
  2. Step 2: Convert to fraction form
    2,939.94/4,057.32 = 1,943.49/x
  3. Step 3: Cross multiply
    2,939.94x = 4,057.32 × 1,943.49
  4. Step 4: Simplify right side
    2,939.94x = 7,885,360.85
  5. Step 5: Solve for x
    x = 7,885,360.85/2,939.94
  6. Step 6: Final answer
    x = 2,682.15

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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.