Home / 3,136.92-4,705.35-1,904.67

Finding the Fourth Proportional to 3,136.92, 4,705.35 and 1,904.67

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Solution

The fourth proportional to 3,136.92, 4,705.35 and 1,904.67 is: 2,856.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,136.92 : 4,705.35 = 1,904.67 : x
  2. Step 2: Convert to fraction form
    3,136.92/4,705.35 = 1,904.67/x
  3. Step 3: Cross multiply
    3,136.92x = 4,705.35 × 1,904.67
  4. Step 4: Simplify right side
    3,136.92x = 8,962,138.98
  5. Step 5: Solve for x
    x = 8,962,138.98/3,136.92
  6. Step 6: Final answer
    x = 2,856.99

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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.