Home / 5,424.38-8,136.94-1,913.96

Finding the Fourth Proportional to 5,424.38, 8,136.94 and 1,913.96

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Solution

The fourth proportional to 5,424.38, 8,136.94 and 1,913.96 is: 2,871.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.38 : 8,136.94 = 1,913.96 : x
  2. Step 2: Convert to fraction form
    5,424.38/8,136.94 = 1,913.96/x
  3. Step 3: Cross multiply
    5,424.38x = 8,136.94 × 1,913.96
  4. Step 4: Simplify right side
    5,424.38x = 15,573,777.68
  5. Step 5: Solve for x
    x = 15,573,777.68/5,424.38
  6. Step 6: Final answer
    x = 2,871.07

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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.