Home / 5,171.27-7,136.36-2,813.41

Finding the Fourth Proportional to 5,171.27, 7,136.36 and 2,813.41

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Solution

The fourth proportional to 5,171.27, 7,136.36 and 2,813.41 is: 3,882.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.27 : 7,136.36 = 2,813.41 : x
  2. Step 2: Convert to fraction form
    5,171.27/7,136.36 = 2,813.41/x
  3. Step 3: Cross multiply
    5,171.27x = 7,136.36 × 2,813.41
  4. Step 4: Simplify right side
    5,171.27x = 20,077,477.94
  5. Step 5: Solve for x
    x = 20,077,477.94/5,171.27
  6. Step 6: Final answer
    x = 3,882.51

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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.