Home / 3,280.39-4,910.04-1,815.91

Finding the Fourth Proportional to 3,280.39, 4,910.04 and 1,815.91

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Solution

The fourth proportional to 3,280.39, 4,910.04 and 1,815.91 is: 2,718.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.39 : 4,910.04 = 1,815.91 : x
  2. Step 2: Convert to fraction form
    3,280.39/4,910.04 = 1,815.91/x
  3. Step 3: Cross multiply
    3,280.39x = 4,910.04 × 1,815.91
  4. Step 4: Simplify right side
    3,280.39x = 8,916,190.74
  5. Step 5: Solve for x
    x = 8,916,190.74/3,280.39
  6. Step 6: Final answer
    x = 2,718.03

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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.