Home / 3,119.28-4,298.66-2,233.54

Finding the Fourth Proportional to 3,119.28, 4,298.66 and 2,233.54

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Solution

The fourth proportional to 3,119.28, 4,298.66 and 2,233.54 is: 3,078.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.28 : 4,298.66 = 2,233.54 : x
  2. Step 2: Convert to fraction form
    3,119.28/4,298.66 = 2,233.54/x
  3. Step 3: Cross multiply
    3,119.28x = 4,298.66 × 2,233.54
  4. Step 4: Simplify right side
    3,119.28x = 9,601,231.64
  5. Step 5: Solve for x
    x = 9,601,231.64/3,119.28
  6. Step 6: Final answer
    x = 3,078.03

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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.