Home / 5,424.84-8,131.76-2,136.64

Finding the Fourth Proportional to 5,424.84, 8,131.76 and 2,136.64

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Solution

The fourth proportional to 5,424.84, 8,131.76 and 2,136.64 is: 3,202.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.84 : 8,131.76 = 2,136.64 : x
  2. Step 2: Convert to fraction form
    5,424.84/8,131.76 = 2,136.64/x
  3. Step 3: Cross multiply
    5,424.84x = 8,131.76 × 2,136.64
  4. Step 4: Simplify right side
    5,424.84x = 17,374,643.69
  5. Step 5: Solve for x
    x = 17,374,643.69/5,424.84
  6. Step 6: Final answer
    x = 3,202.79

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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.