Home / 5,174.42-7,136.50-3,181.41

Finding the Fourth Proportional to 5,174.42, 7,136.50 and 3,181.41

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Solution

The fourth proportional to 5,174.42, 7,136.50 and 3,181.41 is: 4,387.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.42 : 7,136.50 = 3,181.41 : x
  2. Step 2: Convert to fraction form
    5,174.42/7,136.50 = 3,181.41/x
  3. Step 3: Cross multiply
    5,174.42x = 7,136.50 × 3,181.41
  4. Step 4: Simplify right side
    5,174.42x = 22,704,132.47
  5. Step 5: Solve for x
    x = 22,704,132.47/5,174.42
  6. Step 6: Final answer
    x = 4,387.76

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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.