Home / 3,189.81-4,401.54-1,863.33

Finding the Fourth Proportional to 3,189.81, 4,401.54 and 1,863.33

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Solution

The fourth proportional to 3,189.81, 4,401.54 and 1,863.33 is: 2,571.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.81 : 4,401.54 = 1,863.33 : x
  2. Step 2: Convert to fraction form
    3,189.81/4,401.54 = 1,863.33/x
  3. Step 3: Cross multiply
    3,189.81x = 4,401.54 × 1,863.33
  4. Step 4: Simplify right side
    3,189.81x = 8,201,521.53
  5. Step 5: Solve for x
    x = 8,201,521.53/3,189.81
  6. Step 6: Final answer
    x = 2,571.16

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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.