Home / 3,428.24-5,143.88-3,136.56

Finding the Fourth Proportional to 3,428.24, 5,143.88 and 3,136.56

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Solution

The fourth proportional to 3,428.24, 5,143.88 and 3,136.56 is: 4,706.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,428.24 : 5,143.88 = 3,136.56 : x
  2. Step 2: Convert to fraction form
    3,428.24/5,143.88 = 3,136.56/x
  3. Step 3: Cross multiply
    3,428.24x = 5,143.88 × 3,136.56
  4. Step 4: Simplify right side
    3,428.24x = 16,134,088.25
  5. Step 5: Solve for x
    x = 16,134,088.25/3,428.24
  6. Step 6: Final answer
    x = 4,706.23

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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.