Home / 2,855.12-3,939.84-1,596.38

Finding the Fourth Proportional to 2,855.12, 3,939.84 and 1,596.38

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Solution

The fourth proportional to 2,855.12, 3,939.84 and 1,596.38 is: 2,202.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,855.12 : 3,939.84 = 1,596.38 : x
  2. Step 2: Convert to fraction form
    2,855.12/3,939.84 = 1,596.38/x
  3. Step 3: Cross multiply
    2,855.12x = 3,939.84 × 1,596.38
  4. Step 4: Simplify right side
    2,855.12x = 6,289,462.08
  5. Step 5: Solve for x
    x = 6,289,462.08/2,855.12
  6. Step 6: Final answer
    x = 2,202.88

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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.