Home / 1,617.53-2,231.19-1,028.85

Finding the Fourth Proportional to 1,617.53, 2,231.19 and 1,028.85

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Solution

The fourth proportional to 1,617.53, 2,231.19 and 1,028.85 is: 1,419.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.53 : 2,231.19 = 1,028.85 : x
  2. Step 2: Convert to fraction form
    1,617.53/2,231.19 = 1,028.85/x
  3. Step 3: Cross multiply
    1,617.53x = 2,231.19 × 1,028.85
  4. Step 4: Simplify right side
    1,617.53x = 2,295,559.83
  5. Step 5: Solve for x
    x = 2,295,559.83/1,617.53
  6. Step 6: Final answer
    x = 1,419.18

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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.