Home / 3,889.50-5,367.66-2,210.97

Finding the Fourth Proportional to 3,889.50, 5,367.66 and 2,210.97

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Solution

The fourth proportional to 3,889.50, 5,367.66 and 2,210.97 is: 3,051.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.50 : 5,367.66 = 2,210.97 : x
  2. Step 2: Convert to fraction form
    3,889.50/5,367.66 = 2,210.97/x
  3. Step 3: Cross multiply
    3,889.50x = 5,367.66 × 2,210.97
  4. Step 4: Simplify right side
    3,889.50x = 11,867,735.23
  5. Step 5: Solve for x
    x = 11,867,735.23/3,889.50
  6. Step 6: Final answer
    x = 3,051.22

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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.