Home / 3,962.91-5,939.85-1,879.98

Finding the Fourth Proportional to 3,962.91, 5,939.85 and 1,879.98

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Solution

The fourth proportional to 3,962.91, 5,939.85 and 1,879.98 is: 2,817.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,962.91 : 5,939.85 = 1,879.98 : x
  2. Step 2: Convert to fraction form
    3,962.91/5,939.85 = 1,879.98/x
  3. Step 3: Cross multiply
    3,962.91x = 5,939.85 × 1,879.98
  4. Step 4: Simplify right side
    3,962.91x = 11,166,799.20
  5. Step 5: Solve for x
    x = 11,166,799.20/3,962.91
  6. Step 6: Final answer
    x = 2,817.83

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1.5x scale

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.