Home / 3,282.62-4,920.81-1,309.46

Finding the Fourth Proportional to 3,282.62, 4,920.81 and 1,309.46

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Solution

The fourth proportional to 3,282.62, 4,920.81 and 1,309.46 is: 1,962.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,282.62 : 4,920.81 = 1,309.46 : x
  2. Step 2: Convert to fraction form
    3,282.62/4,920.81 = 1,309.46/x
  3. Step 3: Cross multiply
    3,282.62x = 4,920.81 × 1,309.46
  4. Step 4: Simplify right side
    3,282.62x = 6,443,611.85
  5. Step 5: Solve for x
    x = 6,443,611.85/3,282.62
  6. Step 6: Final answer
    x = 1,962.95

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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.