Home / 2,936.24-4,052.20-1,939.78

Finding the Fourth Proportional to 2,936.24, 4,052.20 and 1,939.78

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Solution

The fourth proportional to 2,936.24, 4,052.20 and 1,939.78 is: 2,677.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,936.24 : 4,052.20 = 1,939.78 : x
  2. Step 2: Convert to fraction form
    2,936.24/4,052.20 = 1,939.78/x
  3. Step 3: Cross multiply
    2,936.24x = 4,052.20 × 1,939.78
  4. Step 4: Simplify right side
    2,936.24x = 7,860,364.85
  5. Step 5: Solve for x
    x = 7,860,364.85/2,936.24
  6. Step 6: Final answer
    x = 2,677.01

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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.