Home / 1,774.78-2,449.09-1,028.68

Finding the Fourth Proportional to 1,774.78, 2,449.09 and 1,028.68

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Solution

The fourth proportional to 1,774.78, 2,449.09 and 1,028.68 is: 1,419.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,774.78 : 2,449.09 = 1,028.68 : x
  2. Step 2: Convert to fraction form
    1,774.78/2,449.09 = 1,028.68/x
  3. Step 3: Cross multiply
    1,774.78x = 2,449.09 × 1,028.68
  4. Step 4: Simplify right side
    1,774.78x = 2,519,329.90
  5. Step 5: Solve for x
    x = 2,519,329.90/1,774.78
  6. Step 6: Final answer
    x = 1,419.52

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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.