Home / 3,198.10-4,412.61-1,800.85

Finding the Fourth Proportional to 3,198.10, 4,412.61 and 1,800.85

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Solution

The fourth proportional to 3,198.10, 4,412.61 and 1,800.85 is: 2,484.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.10 : 4,412.61 = 1,800.85 : x
  2. Step 2: Convert to fraction form
    3,198.10/4,412.61 = 1,800.85/x
  3. Step 3: Cross multiply
    3,198.10x = 4,412.61 × 1,800.85
  4. Step 4: Simplify right side
    3,198.10x = 7,946,448.72
  5. Step 5: Solve for x
    x = 7,946,448.72/3,198.10
  6. Step 6: Final answer
    x = 2,484.74

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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.