Home / 3,428.94-5,136.23-2,842.55

Finding the Fourth Proportional to 3,428.94, 5,136.23 and 2,842.55

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Solution

The fourth proportional to 3,428.94, 5,136.23 and 2,842.55 is: 4,257.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.94 : 5,136.23 = 2,842.55 : x
  2. Step 2: Convert to fraction form
    3,428.94/5,136.23 = 2,842.55/x
  3. Step 3: Cross multiply
    3,428.94x = 5,136.23 × 2,842.55
  4. Step 4: Simplify right side
    3,428.94x = 14,599,950.69
  5. Step 5: Solve for x
    x = 14,599,950.69/3,428.94
  6. Step 6: Final answer
    x = 4,257.86

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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.