Home / 7,136.28-10,703.61-1,942.56

Finding the Fourth Proportional to 7,136.28, 10,703.61 and 1,942.56

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Solution

The fourth proportional to 7,136.28, 10,703.61 and 1,942.56 is: 2,913.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.28 : 10,703.61 = 1,942.56 : x
  2. Step 2: Convert to fraction form
    7,136.28/10,703.61 = 1,942.56/x
  3. Step 3: Cross multiply
    7,136.28x = 10,703.61 × 1,942.56
  4. Step 4: Simplify right side
    7,136.28x = 20,792,404.64
  5. Step 5: Solve for x
    x = 20,792,404.64/7,136.28
  6. Step 6: Final answer
    x = 2,913.62

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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.