Home / 1,028.36-1,418.38-654.95

Finding the Fourth Proportional to 1,028.36, 1,418.38 and 654.95

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Solution

The fourth proportional to 1,028.36, 1,418.38 and 654.95 is: 903.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028.36 : 1,418.38 = 654.95 : x
  2. Step 2: Convert to fraction form
    1,028.36/1,418.38 = 654.95/x
  3. Step 3: Cross multiply
    1,028.36x = 1,418.38 × 654.95
  4. Step 4: Simplify right side
    1,028.36x = 928,969.89
  5. Step 5: Solve for x
    x = 928,969.89/1,028.36
  6. Step 6: Final answer
    x = 903.35

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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.