Home / 5,620.44-7,756.20-3,136.44

Finding the Fourth Proportional to 5,620.44, 7,756.20 and 3,136.44

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Solution

The fourth proportional to 5,620.44, 7,756.20 and 3,136.44 is: 4,328.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,620.44 : 7,756.20 = 3,136.44 : x
  2. Step 2: Convert to fraction form
    5,620.44/7,756.20 = 3,136.44/x
  3. Step 3: Cross multiply
    5,620.44x = 7,756.20 × 3,136.44
  4. Step 4: Simplify right side
    5,620.44x = 24,326,855.93
  5. Step 5: Solve for x
    x = 24,326,855.93/5,620.44
  6. Step 6: Final answer
    x = 4,328.28

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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.