Home / 3,198.49-4,406.81-2,665.41

Finding the Fourth Proportional to 3,198.49, 4,406.81 and 2,665.41

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Solution

The fourth proportional to 3,198.49, 4,406.81 and 2,665.41 is: 3,672.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198.49 : 4,406.81 = 2,665.41 : x
  2. Step 2: Convert to fraction form
    3,198.49/4,406.81 = 2,665.41/x
  3. Step 3: Cross multiply
    3,198.49x = 4,406.81 × 2,665.41
  4. Step 4: Simplify right side
    3,198.49x = 11,745,925.59
  5. Step 5: Solve for x
    x = 11,745,925.59/3,198.49
  6. Step 6: Final answer
    x = 3,672.34

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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.