Home / 1,724.33-2,578.60-1,285.88

Finding the Fourth Proportional to 1,724.33, 2,578.60 and 1,285.88

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Solution

The fourth proportional to 1,724.33, 2,578.60 and 1,285.88 is: 1,922.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,724.33 : 2,578.60 = 1,285.88 : x
  2. Step 2: Convert to fraction form
    1,724.33/2,578.60 = 1,285.88/x
  3. Step 3: Cross multiply
    1,724.33x = 2,578.60 × 1,285.88
  4. Step 4: Simplify right side
    1,724.33x = 3,315,770.17
  5. Step 5: Solve for x
    x = 3,315,770.17/1,724.33
  6. Step 6: Final answer
    x = 1,922.93

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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.