Home / 5,481.37-8,222.15-1,783.58

Finding the Fourth Proportional to 5,481.37, 8,222.15 and 1,783.58

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Solution

The fourth proportional to 5,481.37, 8,222.15 and 1,783.58 is: 2,675.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.37 : 8,222.15 = 1,783.58 : x
  2. Step 2: Convert to fraction form
    5,481.37/8,222.15 = 1,783.58/x
  3. Step 3: Cross multiply
    5,481.37x = 8,222.15 × 1,783.58
  4. Step 4: Simplify right side
    5,481.37x = 14,664,887.31
  5. Step 5: Solve for x
    x = 14,664,887.31/5,481.37
  6. Step 6: Final answer
    x = 2,675.41

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1.5x scale

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.