Home / 1,028.16-1,418.63-608.27

Finding the Fourth Proportional to 1,028.16, 1,418.63 and 608.27

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Solution

The fourth proportional to 1,028.16, 1,418.63 and 608.27 is: 839.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028.16 : 1,418.63 = 608.27 : x
  2. Step 2: Convert to fraction form
    1,028.16/1,418.63 = 608.27/x
  3. Step 3: Cross multiply
    1,028.16x = 1,418.63 × 608.27
  4. Step 4: Simplify right side
    1,028.16x = 862,899.94
  5. Step 5: Solve for x
    x = 862,899.94/1,028.16
  6. Step 6: Final answer
    x = 839.27

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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.