Home / 5,423.44-8,136.80-3,845.21

Finding the Fourth Proportional to 5,423.44, 8,136.80 and 3,845.21

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Solution

The fourth proportional to 5,423.44, 8,136.80 and 3,845.21 is: 5,768.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,423.44 : 8,136.80 = 3,845.21 : x
  2. Step 2: Convert to fraction form
    5,423.44/8,136.80 = 3,845.21/x
  3. Step 3: Cross multiply
    5,423.44x = 8,136.80 × 3,845.21
  4. Step 4: Simplify right side
    5,423.44x = 31,287,734.68
  5. Step 5: Solve for x
    x = 31,287,734.68/5,423.44
  6. Step 6: Final answer
    x = 5,768.99

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1.5x scale

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.