Home / 3,421.44-5,107.86-3,299.94

Finding the Fourth Proportional to 3,421.44, 5,107.86 and 3,299.94

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Solution

The fourth proportional to 3,421.44, 5,107.86 and 3,299.94 is: 4,926.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.44 : 5,107.86 = 3,299.94 : x
  2. Step 2: Convert to fraction form
    3,421.44/5,107.86 = 3,299.94/x
  3. Step 3: Cross multiply
    3,421.44x = 5,107.86 × 3,299.94
  4. Step 4: Simplify right side
    3,421.44x = 16,855,631.53
  5. Step 5: Solve for x
    x = 16,855,631.53/3,421.44
  6. Step 6: Final answer
    x = 4,926.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.