Home / 7,136.83-10,705.20-1,942.66

Finding the Fourth Proportional to 7,136.83, 10,705.20 and 1,942.66

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Solution

The fourth proportional to 7,136.83, 10,705.20 and 1,942.66 is: 2,913.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.83 : 10,705.20 = 1,942.66 : x
  2. Step 2: Convert to fraction form
    7,136.83/10,705.20 = 1,942.66/x
  3. Step 3: Cross multiply
    7,136.83x = 10,705.20 × 1,942.66
  4. Step 4: Simplify right side
    7,136.83x = 20,796,563.83
  5. Step 5: Solve for x
    x = 20,796,563.83/7,136.83
  6. Step 6: Final answer
    x = 2,913.98

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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.