Home / 1,103.10-1,522.31-605.70

Finding the Fourth Proportional to 1,103.10, 1,522.31 and 605.70

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Solution

The fourth proportional to 1,103.10, 1,522.31 and 605.70 is: 835.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103.10 : 1,522.31 = 605.70 : x
  2. Step 2: Convert to fraction form
    1,103.10/1,522.31 = 605.70/x
  3. Step 3: Cross multiply
    1,103.10x = 1,522.31 × 605.70
  4. Step 4: Simplify right side
    1,103.10x = 922,060.14
  5. Step 5: Solve for x
    x = 922,060.14/1,103.10
  6. Step 6: Final answer
    x = 835.88

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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.