Home / 7,136.91-10,705.41-1,942.83

Finding the Fourth Proportional to 7,136.91, 10,705.41 and 1,942.83

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Solution

The fourth proportional to 7,136.91, 10,705.41 and 1,942.83 is: 2,914.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.91 : 10,705.41 = 1,942.83 : x
  2. Step 2: Convert to fraction form
    7,136.91/10,705.41 = 1,942.83/x
  3. Step 3: Cross multiply
    7,136.91x = 10,705.41 × 1,942.83
  4. Step 4: Simplify right side
    7,136.91x = 20,798,791.71
  5. Step 5: Solve for x
    x = 20,798,791.71/7,136.91
  6. Step 6: Final answer
    x = 2,914.26

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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.