Home / 3,280.73-4,920.57-1,089.47

Finding the Fourth Proportional to 3,280.73, 4,920.57 and 1,089.47

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Solution

The fourth proportional to 3,280.73, 4,920.57 and 1,089.47 is: 1,634.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.73 : 4,920.57 = 1,089.47 : x
  2. Step 2: Convert to fraction form
    3,280.73/4,920.57 = 1,089.47/x
  3. Step 3: Cross multiply
    3,280.73x = 4,920.57 × 1,089.47
  4. Step 4: Simplify right side
    3,280.73x = 5,360,788.80
  5. Step 5: Solve for x
    x = 5,360,788.80/3,280.73
  6. Step 6: Final answer
    x = 1,634.03

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1.5x scale

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.