Home / 6,136.40-9,211.80-3,954.20

Finding the Fourth Proportional to 6,136.40, 9,211.80 and 3,954.20

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Solution

The fourth proportional to 6,136.40, 9,211.80 and 3,954.20 is: 5,935.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,136.40 : 9,211.80 = 3,954.20 : x
  2. Step 2: Convert to fraction form
    6,136.40/9,211.80 = 3,954.20/x
  3. Step 3: Cross multiply
    6,136.40x = 9,211.80 × 3,954.20
  4. Step 4: Simplify right side
    6,136.40x = 36,425,299.56
  5. Step 5: Solve for x
    x = 36,425,299.56/6,136.40
  6. Step 6: Final answer
    x = 5,935.94

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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.