Home / 3,218.38-4,807.64-2,286.60

Finding the Fourth Proportional to 3,218.38, 4,807.64 and 2,286.60

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Solution

The fourth proportional to 3,218.38, 4,807.64 and 2,286.60 is: 3,415.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.38 : 4,807.64 = 2,286.60 : x
  2. Step 2: Convert to fraction form
    3,218.38/4,807.64 = 2,286.60/x
  3. Step 3: Cross multiply
    3,218.38x = 4,807.64 × 2,286.60
  4. Step 4: Simplify right side
    3,218.38x = 10,993,149.62
  5. Step 5: Solve for x
    x = 10,993,149.62/3,218.38
  6. Step 6: Final answer
    x = 3,415.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.