Home / 1,028.05-1,418.53-608.37

Finding the Fourth Proportional to 1,028.05, 1,418.53 and 608.37

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Solution

The fourth proportional to 1,028.05, 1,418.53 and 608.37 is: 839.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028.05 : 1,418.53 = 608.37 : x
  2. Step 2: Convert to fraction form
    1,028.05/1,418.53 = 608.37/x
  3. Step 3: Cross multiply
    1,028.05x = 1,418.53 × 608.37
  4. Step 4: Simplify right side
    1,028.05x = 862,991.10
  5. Step 5: Solve for x
    x = 862,991.10/1,028.05
  6. Step 6: Final answer
    x = 839.44

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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.