Home / 3,198.17-4,412.45-1,800.65

Finding the Fourth Proportional to 3,198.17, 4,412.45 and 1,800.65

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Solution

The fourth proportional to 3,198.17, 4,412.45 and 1,800.65 is: 2,484.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.17 : 4,412.45 = 1,800.65 : x
  2. Step 2: Convert to fraction form
    3,198.17/4,412.45 = 1,800.65/x
  3. Step 3: Cross multiply
    3,198.17x = 4,412.45 × 1,800.65
  4. Step 4: Simplify right side
    3,198.17x = 7,945,256.03
  5. Step 5: Solve for x
    x = 7,945,256.03/3,198.17
  6. Step 6: Final answer
    x = 2,484.32

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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.