Home / 2,136.85-3,206.39-1,616.70

Finding the Fourth Proportional to 2,136.85, 3,206.39 and 1,616.70

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Solution

The fourth proportional to 2,136.85, 3,206.39 and 1,616.70 is: 2,425.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136.85 : 3,206.39 = 1,616.70 : x
  2. Step 2: Convert to fraction form
    2,136.85/3,206.39 = 1,616.70/x
  3. Step 3: Cross multiply
    2,136.85x = 3,206.39 × 1,616.70
  4. Step 4: Simplify right side
    2,136.85x = 5,183,775.87
  5. Step 5: Solve for x
    x = 5,183,775.87/2,136.85
  6. Step 6: Final answer
    x = 2,425.89

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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.