Home / 3,280.77-4,921.09-1,089.52

Finding the Fourth Proportional to 3,280.77, 4,921.09 and 1,089.52

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Solution

The fourth proportional to 3,280.77, 4,921.09 and 1,089.52 is: 1,634.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.77 : 4,921.09 = 1,089.52 : x
  2. Step 2: Convert to fraction form
    3,280.77/4,921.09 = 1,089.52/x
  3. Step 3: Cross multiply
    3,280.77x = 4,921.09 × 1,089.52
  4. Step 4: Simplify right side
    3,280.77x = 5,361,610.95
  5. Step 5: Solve for x
    x = 5,361,610.95/3,280.77
  6. Step 6: Final answer
    x = 1,634.25

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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.