Home / 3,243.28-4,865.76-1,394.08

Finding the Fourth Proportional to 3,243.28, 4,865.76 and 1,394.08

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Solution

The fourth proportional to 3,243.28, 4,865.76 and 1,394.08 is: 2,091.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,243.28 : 4,865.76 = 1,394.08 : x
  2. Step 2: Convert to fraction form
    3,243.28/4,865.76 = 1,394.08/x
  3. Step 3: Cross multiply
    3,243.28x = 4,865.76 × 1,394.08
  4. Step 4: Simplify right side
    3,243.28x = 6,783,258.70
  5. Step 5: Solve for x
    x = 6,783,258.70/3,243.28
  6. Step 6: Final answer
    x = 2,091.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.