Home / 3,280.84-4,920.96-1,089.82

Finding the Fourth Proportional to 3,280.84, 4,920.96 and 1,089.82

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Solution

The fourth proportional to 3,280.84, 4,920.96 and 1,089.82 is: 1,634.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.84 : 4,920.96 = 1,089.82 : x
  2. Step 2: Convert to fraction form
    3,280.84/4,920.96 = 1,089.82/x
  3. Step 3: Cross multiply
    3,280.84x = 4,920.96 × 1,089.82
  4. Step 4: Simplify right side
    3,280.84x = 5,362,960.63
  5. Step 5: Solve for x
    x = 5,362,960.63/3,280.84
  6. Step 6: Final answer
    x = 1,634.63

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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.