Home / 7,136.96-10,705.32-1,942.64

Finding the Fourth Proportional to 7,136.96, 10,705.32 and 1,942.64

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Solution

The fourth proportional to 7,136.96, 10,705.32 and 1,942.64 is: 2,913.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.96 : 10,705.32 = 1,942.64 : x
  2. Step 2: Convert to fraction form
    7,136.96/10,705.32 = 1,942.64/x
  3. Step 3: Cross multiply
    7,136.96x = 10,705.32 × 1,942.64
  4. Step 4: Simplify right side
    7,136.96x = 20,796,582.84
  5. Step 5: Solve for x
    x = 20,796,582.84/7,136.96
  6. Step 6: Final answer
    x = 2,913.93

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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.