Home / 5,431.22-8,105.82-4,906.34

Finding the Fourth Proportional to 5,431.22, 8,105.82 and 4,906.34

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Solution

The fourth proportional to 5,431.22, 8,105.82 and 4,906.34 is: 7,322.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431.22 : 8,105.82 = 4,906.34 : x
  2. Step 2: Convert to fraction form
    5,431.22/8,105.82 = 4,906.34/x
  3. Step 3: Cross multiply
    5,431.22x = 8,105.82 × 4,906.34
  4. Step 4: Simplify right side
    5,431.22x = 39,769,908.90
  5. Step 5: Solve for x
    x = 39,769,908.90/5,431.22
  6. Step 6: Final answer
    x = 7,322.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.