Home / 2,939.58-4,057.32-1,996.94

Finding the Fourth Proportional to 2,939.58, 4,057.32 and 1,996.94

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Solution

The fourth proportional to 2,939.58, 4,057.32 and 1,996.94 is: 2,756.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.58 : 4,057.32 = 1,996.94 : x
  2. Step 2: Convert to fraction form
    2,939.58/4,057.32 = 1,996.94/x
  3. Step 3: Cross multiply
    2,939.58x = 4,057.32 × 1,996.94
  4. Step 4: Simplify right side
    2,939.58x = 8,102,224.60
  5. Step 5: Solve for x
    x = 8,102,224.60/2,939.58
  6. Step 6: Final answer
    x = 2,756.25

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1.5x scale

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.