Home / 2,825.75-3,899.55-1,583.75

Finding the Fourth Proportional to 2,825.75, 3,899.55 and 1,583.75

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Solution

The fourth proportional to 2,825.75, 3,899.55 and 1,583.75 is: 2,185.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,825.75 : 3,899.55 = 1,583.75 : x
  2. Step 2: Convert to fraction form
    2,825.75/3,899.55 = 1,583.75/x
  3. Step 3: Cross multiply
    2,825.75x = 3,899.55 × 1,583.75
  4. Step 4: Simplify right side
    2,825.75x = 6,175,912.31
  5. Step 5: Solve for x
    x = 6,175,912.31/2,825.75
  6. Step 6: Final answer
    x = 2,185.58

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1.5x scale

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.