Home / 7,136.24-9,847.80-3,949.66

Finding the Fourth Proportional to 7,136.24, 9,847.80 and 3,949.66

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Solution

The fourth proportional to 7,136.24, 9,847.80 and 3,949.66 is: 5,450.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.24 : 9,847.80 = 3,949.66 : x
  2. Step 2: Convert to fraction form
    7,136.24/9,847.80 = 3,949.66/x
  3. Step 3: Cross multiply
    7,136.24x = 9,847.80 × 3,949.66
  4. Step 4: Simplify right side
    7,136.24x = 38,895,474.06
  5. Step 5: Solve for x
    x = 38,895,474.06/7,136.24
  6. Step 6: Final answer
    x = 5,450.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.