Home / 3,185.11-4,395.67-1,926.21

Finding the Fourth Proportional to 3,185.11, 4,395.67 and 1,926.21

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Solution

The fourth proportional to 3,185.11, 4,395.67 and 1,926.21 is: 2,658.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185.11 : 4,395.67 = 1,926.21 : x
  2. Step 2: Convert to fraction form
    3,185.11/4,395.67 = 1,926.21/x
  3. Step 3: Cross multiply
    3,185.11x = 4,395.67 × 1,926.21
  4. Step 4: Simplify right side
    3,185.11x = 8,466,995.18
  5. Step 5: Solve for x
    x = 8,466,995.18/3,185.11
  6. Step 6: Final answer
    x = 2,658.31

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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.