Home / 1,103.12-1,522.28-605.75

Finding the Fourth Proportional to 1,103.12, 1,522.28 and 605.75

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Solution

The fourth proportional to 1,103.12, 1,522.28 and 605.75 is: 835.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103.12 : 1,522.28 = 605.75 : x
  2. Step 2: Convert to fraction form
    1,103.12/1,522.28 = 605.75/x
  3. Step 3: Cross multiply
    1,103.12x = 1,522.28 × 605.75
  4. Step 4: Simplify right side
    1,103.12x = 922,110.47
  5. Step 5: Solve for x
    x = 922,110.47/1,103.12
  6. Step 6: Final answer
    x = 835.92

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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.