Home / 3,369.68-5,057.36-1,423.28

Finding the Fourth Proportional to 3,369.68, 5,057.36 and 1,423.28

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Solution

The fourth proportional to 3,369.68, 5,057.36 and 1,423.28 is: 2,136.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,369.68 : 5,057.36 = 1,423.28 : x
  2. Step 2: Convert to fraction form
    3,369.68/5,057.36 = 1,423.28/x
  3. Step 3: Cross multiply
    3,369.68x = 5,057.36 × 1,423.28
  4. Step 4: Simplify right side
    3,369.68x = 7,198,039.34
  5. Step 5: Solve for x
    x = 7,198,039.34/3,369.68
  6. Step 6: Final answer
    x = 2,136.12

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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.