Home / 5,422.03-8,128.94-4,325.79

Finding the Fourth Proportional to 5,422.03, 8,128.94 and 4,325.79

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Solution

The fourth proportional to 5,422.03, 8,128.94 and 4,325.79 is: 6,485.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,422.03 : 8,128.94 = 4,325.79 : x
  2. Step 2: Convert to fraction form
    5,422.03/8,128.94 = 4,325.79/x
  3. Step 3: Cross multiply
    5,422.03x = 8,128.94 × 4,325.79
  4. Step 4: Simplify right side
    5,422.03x = 35,164,087.36
  5. Step 5: Solve for x
    x = 35,164,087.36/5,422.03
  6. Step 6: Final answer
    x = 6,485.41

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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.