Home / 6,390.60-9,589.56-3,469.15

Finding the Fourth Proportional to 6,390.60, 9,589.56 and 3,469.15

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Solution

The fourth proportional to 6,390.60, 9,589.56 and 3,469.15 is: 5,205.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,390.60 : 9,589.56 = 3,469.15 : x
  2. Step 2: Convert to fraction form
    6,390.60/9,589.56 = 3,469.15/x
  3. Step 3: Cross multiply
    6,390.60x = 9,589.56 × 3,469.15
  4. Step 4: Simplify right side
    6,390.60x = 33,267,622.07
  5. Step 5: Solve for x
    x = 33,267,622.07/6,390.60
  6. Step 6: Final answer
    x = 5,205.71

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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.