Home / 3,840.32-5,299.34-2,268.12

Finding the Fourth Proportional to 3,840.32, 5,299.34 and 2,268.12

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Solution

The fourth proportional to 3,840.32, 5,299.34 and 2,268.12 is: 3,129.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.32 : 5,299.34 = 2,268.12 : x
  2. Step 2: Convert to fraction form
    3,840.32/5,299.34 = 2,268.12/x
  3. Step 3: Cross multiply
    3,840.32x = 5,299.34 × 2,268.12
  4. Step 4: Simplify right side
    3,840.32x = 12,019,539.04
  5. Step 5: Solve for x
    x = 12,019,539.04/3,840.32
  6. Step 6: Final answer
    x = 3,129.83

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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.