Home / 6,168.81-8,515.77-3,933.75

Finding the Fourth Proportional to 6,168.81, 8,515.77 and 3,933.75

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Solution

The fourth proportional to 6,168.81, 8,515.77 and 3,933.75 is: 5,430.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,168.81 : 8,515.77 = 3,933.75 : x
  2. Step 2: Convert to fraction form
    6,168.81/8,515.77 = 3,933.75/x
  3. Step 3: Cross multiply
    6,168.81x = 8,515.77 × 3,933.75
  4. Step 4: Simplify right side
    6,168.81x = 33,498,910.24
  5. Step 5: Solve for x
    x = 33,498,910.24/6,168.81
  6. Step 6: Final answer
    x = 5,430.37

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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.