Home / 1,103.25-1,522.43-605.80

Finding the Fourth Proportional to 1,103.25, 1,522.43 and 605.80

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Solution

The fourth proportional to 1,103.25, 1,522.43 and 605.80 is: 835.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103.25 : 1,522.43 = 605.80 : x
  2. Step 2: Convert to fraction form
    1,103.25/1,522.43 = 605.80/x
  3. Step 3: Cross multiply
    1,103.25x = 1,522.43 × 605.80
  4. Step 4: Simplify right side
    1,103.25x = 922,280.68
  5. Step 5: Solve for x
    x = 922,280.68/1,103.25
  6. Step 6: Final answer
    x = 835.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.