Home / 4,198.47-5,786.75-2,869.88

Finding the Fourth Proportional to 4,198.47, 5,786.75 and 2,869.88

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Solution

The fourth proportional to 4,198.47, 5,786.75 and 2,869.88 is: 3,955.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,198.47 : 5,786.75 = 2,869.88 : x
  2. Step 2: Convert to fraction form
    4,198.47/5,786.75 = 2,869.88/x
  3. Step 3: Cross multiply
    4,198.47x = 5,786.75 × 2,869.88
  4. Step 4: Simplify right side
    4,198.47x = 16,607,234.81
  5. Step 5: Solve for x
    x = 16,607,234.81/4,198.47
  6. Step 6: Final answer
    x = 3,955.54

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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.