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Finding the Fourth Proportional to 3,866.89, 5,336.66 and 2,450.43

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Solution

The fourth proportional to 3,866.89, 5,336.66 and 2,450.43 is: 3,381.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,866.89 : 5,336.66 = 2,450.43 : x
  2. Step 2: Convert to fraction form
    3,866.89/5,336.66 = 2,450.43/x
  3. Step 3: Cross multiply
    3,866.89x = 5,336.66 × 2,450.43
  4. Step 4: Simplify right side
    3,866.89x = 13,077,095.99
  5. Step 5: Solve for x
    x = 13,077,095.99/3,866.89
  6. Step 6: Final answer
    x = 3,381.81

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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.