Home / 3,136.96-4,705.32-1,286.69

Finding the Fourth Proportional to 3,136.96, 4,705.32 and 1,286.69

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Solution

The fourth proportional to 3,136.96, 4,705.32 and 1,286.69 is: 1,929.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.96 : 4,705.32 = 1,286.69 : x
  2. Step 2: Convert to fraction form
    3,136.96/4,705.32 = 1,286.69/x
  3. Step 3: Cross multiply
    3,136.96x = 4,705.32 × 1,286.69
  4. Step 4: Simplify right side
    3,136.96x = 6,054,269.49
  5. Step 5: Solve for x
    x = 6,054,269.49/3,136.96
  6. Step 6: Final answer
    x = 1,929.98

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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.