Home / 3,450.78-5,176.19-1,259.69

Finding the Fourth Proportional to 3,450.78, 5,176.19 and 1,259.69

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Solution

The fourth proportional to 3,450.78, 5,176.19 and 1,259.69 is: 1,889.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.78 : 5,176.19 = 1,259.69 : x
  2. Step 2: Convert to fraction form
    3,450.78/5,176.19 = 1,259.69/x
  3. Step 3: Cross multiply
    3,450.78x = 5,176.19 × 1,259.69
  4. Step 4: Simplify right side
    3,450.78x = 6,520,362.60
  5. Step 5: Solve for x
    x = 6,520,362.60/3,450.78
  6. Step 6: Final answer
    x = 1,889.53

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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.