Home / 1,792.80-2,689.44-1,745.28

Finding the Fourth Proportional to 1,792.80, 2,689.44 and 1,745.28

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Solution

The fourth proportional to 1,792.80, 2,689.44 and 1,745.28 is: 2,618.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792.80 : 2,689.44 = 1,745.28 : x
  2. Step 2: Convert to fraction form
    1,792.80/2,689.44 = 1,745.28/x
  3. Step 3: Cross multiply
    1,792.80x = 2,689.44 × 1,745.28
  4. Step 4: Simplify right side
    1,792.80x = 4,693,825.84
  5. Step 5: Solve for x
    x = 4,693,825.84/1,792.80
  6. Step 6: Final answer
    x = 2,618.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.