Home / 3,198.19-4,412.23-1,956.91

Finding the Fourth Proportional to 3,198.19, 4,412.23 and 1,956.91

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Solution

The fourth proportional to 3,198.19, 4,412.23 and 1,956.91 is: 2,699.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.19 : 4,412.23 = 1,956.91 : x
  2. Step 2: Convert to fraction form
    3,198.19/4,412.23 = 1,956.91/x
  3. Step 3: Cross multiply
    3,198.19x = 4,412.23 × 1,956.91
  4. Step 4: Simplify right side
    3,198.19x = 8,634,337.01
  5. Step 5: Solve for x
    x = 8,634,337.01/3,198.19
  6. Step 6: Final answer
    x = 2,699.76

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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.