Home / 3,455.87-4,768.74-1,963.98

Finding the Fourth Proportional to 3,455.87, 4,768.74 and 1,963.98

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Solution

The fourth proportional to 3,455.87, 4,768.74 and 1,963.98 is: 2,710.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.87 : 4,768.74 = 1,963.98 : x
  2. Step 2: Convert to fraction form
    3,455.87/4,768.74 = 1,963.98/x
  3. Step 3: Cross multiply
    3,455.87x = 4,768.74 × 1,963.98
  4. Step 4: Simplify right side
    3,455.87x = 9,365,709.99
  5. Step 5: Solve for x
    x = 9,365,709.99/3,455.87
  6. Step 6: Final answer
    x = 2,710.09

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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.