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Finding the Fourth Proportional to 3,379.75, 4,664.04 and 1,887.67

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Solution

The fourth proportional to 3,379.75, 4,664.04 and 1,887.67 is: 2,604.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.75 : 4,664.04 = 1,887.67 : x
  2. Step 2: Convert to fraction form
    3,379.75/4,664.04 = 1,887.67/x
  3. Step 3: Cross multiply
    3,379.75x = 4,664.04 × 1,887.67
  4. Step 4: Simplify right side
    3,379.75x = 8,804,163.81
  5. Step 5: Solve for x
    x = 8,804,163.81/3,379.75
  6. Step 6: Final answer
    x = 2,604.97

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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.