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Finding the Fourth Proportional to 2,757.46, 4,136.70 and 908.67

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Solution

The fourth proportional to 2,757.46, 4,136.70 and 908.67 is: 1,363.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.46 : 4,136.70 = 908.67 : x
  2. Step 2: Convert to fraction form
    2,757.46/4,136.70 = 908.67/x
  3. Step 3: Cross multiply
    2,757.46x = 4,136.70 × 908.67
  4. Step 4: Simplify right side
    2,757.46x = 3,758,895.19
  5. Step 5: Solve for x
    x = 3,758,895.19/2,757.46
  6. Step 6: Final answer
    x = 1,363.17

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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.