Home / 3,280.91-4,918.60-1,305.29

Finding the Fourth Proportional to 3,280.91, 4,918.60 and 1,305.29

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Solution

The fourth proportional to 3,280.91, 4,918.60 and 1,305.29 is: 1,956.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.91 : 4,918.60 = 1,305.29 : x
  2. Step 2: Convert to fraction form
    3,280.91/4,918.60 = 1,305.29/x
  3. Step 3: Cross multiply
    3,280.91x = 4,918.60 × 1,305.29
  4. Step 4: Simplify right side
    3,280.91x = 6,420,195.82
  5. Step 5: Solve for x
    x = 6,420,195.82/3,280.91
  6. Step 6: Final answer
    x = 1,956.84

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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.