Home / 3,455.67-4,768.68-1,963.38

Finding the Fourth Proportional to 3,455.67, 4,768.68 and 1,963.38

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Solution

The fourth proportional to 3,455.67, 4,768.68 and 1,963.38 is: 2,709.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.67 : 4,768.68 = 1,963.38 : x
  2. Step 2: Convert to fraction form
    3,455.67/4,768.68 = 1,963.38/x
  3. Step 3: Cross multiply
    3,455.67x = 4,768.68 × 1,963.38
  4. Step 4: Simplify right side
    3,455.67x = 9,362,730.94
  5. Step 5: Solve for x
    x = 9,362,730.94/3,455.67
  6. Step 6: Final answer
    x = 2,709.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.