Home / 5,481.45-8,223.40-2,558.16

Finding the Fourth Proportional to 5,481.45, 8,223.40 and 2,558.16

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Solution

The fourth proportional to 5,481.45, 8,223.40 and 2,558.16 is: 3,837.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.45 : 8,223.40 = 2,558.16 : x
  2. Step 2: Convert to fraction form
    5,481.45/8,223.40 = 2,558.16/x
  3. Step 3: Cross multiply
    5,481.45x = 8,223.40 × 2,558.16
  4. Step 4: Simplify right side
    5,481.45x = 21,036,776.14
  5. Step 5: Solve for x
    x = 21,036,776.14/5,481.45
  6. Step 6: Final answer
    x = 3,837.81

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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.