Home / 2,268.32-3,129.34-1,383.80

Finding the Fourth Proportional to 2,268.32, 3,129.34 and 1,383.80

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Solution

The fourth proportional to 2,268.32, 3,129.34 and 1,383.80 is: 1,909.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.32 : 3,129.34 = 1,383.80 : x
  2. Step 2: Convert to fraction form
    2,268.32/3,129.34 = 1,383.80/x
  3. Step 3: Cross multiply
    2,268.32x = 3,129.34 × 1,383.80
  4. Step 4: Simplify right side
    2,268.32x = 4,330,380.69
  5. Step 5: Solve for x
    x = 4,330,380.69/2,268.32
  6. Step 6: Final answer
    x = 1,909.07

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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.