Home / 5,424.35-8,136.53-1,960.79

Finding the Fourth Proportional to 5,424.35, 8,136.53 and 1,960.79

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Solution

The fourth proportional to 5,424.35, 8,136.53 and 1,960.79 is: 2,941.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.35 : 8,136.53 = 1,960.79 : x
  2. Step 2: Convert to fraction form
    5,424.35/8,136.53 = 1,960.79/x
  3. Step 3: Cross multiply
    5,424.35x = 8,136.53 × 1,960.79
  4. Step 4: Simplify right side
    5,424.35x = 15,954,016.85
  5. Step 5: Solve for x
    x = 15,954,016.85/5,424.35
  6. Step 6: Final answer
    x = 2,941.19

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1.5x scale

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.