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Finding the Fourth Proportional to 6,755.81, 10,133.77 and 2,138.81

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Solution

The fourth proportional to 6,755.81, 10,133.77 and 2,138.81 is: 3,208.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,755.81 : 10,133.77 = 2,138.81 : x
  2. Step 2: Convert to fraction form
    6,755.81/10,133.77 = 2,138.81/x
  3. Step 3: Cross multiply
    6,755.81x = 10,133.77 × 2,138.81
  4. Step 4: Simplify right side
    6,755.81x = 21,674,228.60
  5. Step 5: Solve for x
    x = 21,674,228.60/6,755.81
  6. Step 6: Final answer
    x = 3,208.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.