Home / 5,445.50-8,163.86-2,112.03

Finding the Fourth Proportional to 5,445.50, 8,163.86 and 2,112.03

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Solution

The fourth proportional to 5,445.50, 8,163.86 and 2,112.03 is: 3,166.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.50 : 8,163.86 = 2,112.03 : x
  2. Step 2: Convert to fraction form
    5,445.50/8,163.86 = 2,112.03/x
  3. Step 3: Cross multiply
    5,445.50x = 8,163.86 × 2,112.03
  4. Step 4: Simplify right side
    5,445.50x = 17,242,329.48
  5. Step 5: Solve for x
    x = 17,242,329.48/5,445.50
  6. Step 6: Final answer
    x = 3,166.34

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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.