Home / 5,428.44-8,138.88-3,089.97

Finding the Fourth Proportional to 5,428.44, 8,138.88 and 3,089.97

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Solution

The fourth proportional to 5,428.44, 8,138.88 and 3,089.97 is: 4,632.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.44 : 8,138.88 = 3,089.97 : x
  2. Step 2: Convert to fraction form
    5,428.44/8,138.88 = 3,089.97/x
  3. Step 3: Cross multiply
    5,428.44x = 8,138.88 × 3,089.97
  4. Step 4: Simplify right side
    5,428.44x = 25,148,895.03
  5. Step 5: Solve for x
    x = 25,148,895.03/5,428.44
  6. Step 6: Final answer
    x = 4,632.80

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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.