Home / 3,423.99-5,136.68-1,449.61

Finding the Fourth Proportional to 3,423.99, 5,136.68 and 1,449.61

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Solution

The fourth proportional to 3,423.99, 5,136.68 and 1,449.61 is: 2,174.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,423.99 : 5,136.68 = 1,449.61 : x
  2. Step 2: Convert to fraction form
    3,423.99/5,136.68 = 1,449.61/x
  3. Step 3: Cross multiply
    3,423.99x = 5,136.68 × 1,449.61
  4. Step 4: Simplify right side
    3,423.99x = 7,446,202.37
  5. Step 5: Solve for x
    x = 7,446,202.37/3,423.99
  6. Step 6: Final answer
    x = 2,174.72

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1.5x scale

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.