Home / 3,185.51-4,396.53-1,859.21

Finding the Fourth Proportional to 3,185.51, 4,396.53 and 1,859.21

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Solution

The fourth proportional to 3,185.51, 4,396.53 and 1,859.21 is: 2,566.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.51 : 4,396.53 = 1,859.21 : x
  2. Step 2: Convert to fraction form
    3,185.51/4,396.53 = 1,859.21/x
  3. Step 3: Cross multiply
    3,185.51x = 4,396.53 × 1,859.21
  4. Step 4: Simplify right side
    3,185.51x = 8,174,072.54
  5. Step 5: Solve for x
    x = 8,174,072.54/3,185.51
  6. Step 6: Final answer
    x = 2,566.02

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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.