Home / 4,262.75-6,388.26-2,178.36

Finding the Fourth Proportional to 4,262.75, 6,388.26 and 2,178.36

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Solution

The fourth proportional to 4,262.75, 6,388.26 and 2,178.36 is: 3,264.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,262.75 : 6,388.26 = 2,178.36 : x
  2. Step 2: Convert to fraction form
    4,262.75/6,388.26 = 2,178.36/x
  3. Step 3: Cross multiply
    4,262.75x = 6,388.26 × 2,178.36
  4. Step 4: Simplify right side
    4,262.75x = 13,915,930.05
  5. Step 5: Solve for x
    x = 13,915,930.05/4,262.75
  6. Step 6: Final answer
    x = 3,264.55

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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.