Home / 3,722.11-5,136.49-2,150.21

Finding the Fourth Proportional to 3,722.11, 5,136.49 and 2,150.21

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Solution

The fourth proportional to 3,722.11, 5,136.49 and 2,150.21 is: 2,967.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,722.11 : 5,136.49 = 2,150.21 : x
  2. Step 2: Convert to fraction form
    3,722.11/5,136.49 = 2,150.21/x
  3. Step 3: Cross multiply
    3,722.11x = 5,136.49 × 2,150.21
  4. Step 4: Simplify right side
    3,722.11x = 11,044,532.16
  5. Step 5: Solve for x
    x = 11,044,532.16/3,722.11
  6. Step 6: Final answer
    x = 2,967.28

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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.