Home / 3,465.92-5,198.78-1,385.37

Finding the Fourth Proportional to 3,465.92, 5,198.78 and 1,385.37

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Solution

The fourth proportional to 3,465.92, 5,198.78 and 1,385.37 is: 2,078.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.92 : 5,198.78 = 1,385.37 : x
  2. Step 2: Convert to fraction form
    3,465.92/5,198.78 = 1,385.37/x
  3. Step 3: Cross multiply
    3,465.92x = 5,198.78 × 1,385.37
  4. Step 4: Simplify right side
    3,465.92x = 7,202,237.31
  5. Step 5: Solve for x
    x = 7,202,237.31/3,465.92
  6. Step 6: Final answer
    x = 2,078.01

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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.