Home / 3,220.38-4,826.82-1,485.36

Finding the Fourth Proportional to 3,220.38, 4,826.82 and 1,485.36

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Solution

The fourth proportional to 3,220.38, 4,826.82 and 1,485.36 is: 2,226.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.38 : 4,826.82 = 1,485.36 : x
  2. Step 2: Convert to fraction form
    3,220.38/4,826.82 = 1,485.36/x
  3. Step 3: Cross multiply
    3,220.38x = 4,826.82 × 1,485.36
  4. Step 4: Simplify right side
    3,220.38x = 7,169,565.36
  5. Step 5: Solve for x
    x = 7,169,565.36/3,220.38
  6. Step 6: Final answer
    x = 2,226.31

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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.