Home / 7,136.76-10,705.70-1,942.52

Finding the Fourth Proportional to 7,136.76, 10,705.70 and 1,942.52

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Solution

The fourth proportional to 7,136.76, 10,705.70 and 1,942.52 is: 2,913.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.76 : 10,705.70 = 1,942.52 : x
  2. Step 2: Convert to fraction form
    7,136.76/10,705.70 = 1,942.52/x
  3. Step 3: Cross multiply
    7,136.76x = 10,705.70 × 1,942.52
  4. Step 4: Simplify right side
    7,136.76x = 20,796,036.36
  5. Step 5: Solve for x
    x = 20,796,036.36/7,136.76
  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.