Home / 7,424.00-11,136.20-2,158.80

Finding the Fourth Proportional to 7,424.00, 11,136.20 and 2,158.80

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Solution

The fourth proportional to 7,424.00, 11,136.20 and 2,158.80 is: 3,238.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,424.00 : 11,136.20 = 2,158.80 : x
  2. Step 2: Convert to fraction form
    7,424.00/11,136.20 = 2,158.80/x
  3. Step 3: Cross multiply
    7,424.00x = 11,136.20 × 2,158.80
  4. Step 4: Simplify right side
    7,424.00x = 24,040,788.15
  5. Step 5: Solve for x
    x = 24,040,788.15/7,424.00
  6. Step 6: Final answer
    x = 3,238.25

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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.