Home / 1,280.41-1,919.07-548.44

Finding the Fourth Proportional to 1,280.41, 1,919.07 and 548.44

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Solution

The fourth proportional to 1,280.41, 1,919.07 and 548.44 is: 822.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280.41 : 1,919.07 = 548.44 : x
  2. Step 2: Convert to fraction form
    1,280.41/1,919.07 = 548.44/x
  3. Step 3: Cross multiply
    1,280.41x = 1,919.07 × 548.44
  4. Step 4: Simplify right side
    1,280.41x = 1,052,494.75
  5. Step 5: Solve for x
    x = 1,052,494.75/1,280.41
  6. Step 6: Final answer
    x = 822.00

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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.