Home / 4,261.78-6,388.88-1,666.54

Finding the Fourth Proportional to 4,261.78, 6,388.88 and 1,666.54

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Solution

The fourth proportional to 4,261.78, 6,388.88 and 1,666.54 is: 2,498.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,261.78 : 6,388.88 = 1,666.54 : x
  2. Step 2: Convert to fraction form
    4,261.78/6,388.88 = 1,666.54/x
  3. Step 3: Cross multiply
    4,261.78x = 6,388.88 × 1,666.54
  4. Step 4: Simplify right side
    4,261.78x = 10,647,324.08
  5. Step 5: Solve for x
    x = 10,647,324.08/4,261.78
  6. Step 6: Final answer
    x = 2,498.33

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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.