Home / 2,268.28-3,130.16-1,383.92

Finding the Fourth Proportional to 2,268.28, 3,130.16 and 1,383.92

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Solution

The fourth proportional to 2,268.28, 3,130.16 and 1,383.92 is: 1,909.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.28 : 3,130.16 = 1,383.92 : x
  2. Step 2: Convert to fraction form
    2,268.28/3,130.16 = 1,383.92/x
  3. Step 3: Cross multiply
    2,268.28x = 3,130.16 × 1,383.92
  4. Step 4: Simplify right side
    2,268.28x = 4,331,891.03
  5. Step 5: Solve for x
    x = 4,331,891.03/2,268.28
  6. Step 6: Final answer
    x = 1,909.77

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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.