Home / 4,278.37-6,418.23-1,645.77

Finding the Fourth Proportional to 4,278.37, 6,418.23 and 1,645.77

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Solution

The fourth proportional to 4,278.37, 6,418.23 and 1,645.77 is: 2,468.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.37 : 6,418.23 = 1,645.77 : x
  2. Step 2: Convert to fraction form
    4,278.37/6,418.23 = 1,645.77/x
  3. Step 3: Cross multiply
    4,278.37x = 6,418.23 × 1,645.77
  4. Step 4: Simplify right side
    4,278.37x = 10,562,930.39
  5. Step 5: Solve for x
    x = 10,562,930.39/4,278.37
  6. Step 6: Final answer
    x = 2,468.91

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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.