Home / 3,840.34-5,299.84-2,268.44

Finding the Fourth Proportional to 3,840.34, 5,299.84 and 2,268.44

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Solution

The fourth proportional to 3,840.34, 5,299.84 and 2,268.44 is: 3,130.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.34 : 5,299.84 = 2,268.44 : x
  2. Step 2: Convert to fraction form
    3,840.34/5,299.84 = 2,268.44/x
  3. Step 3: Cross multiply
    3,840.34x = 5,299.84 × 2,268.44
  4. Step 4: Simplify right side
    3,840.34x = 12,022,369.05
  5. Step 5: Solve for x
    x = 12,022,369.05/3,840.34
  6. Step 6: Final answer
    x = 3,130.55

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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.