Home / 5,578.11-7,697.46-3,188.34

Finding the Fourth Proportional to 5,578.11, 7,697.46 and 3,188.34

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Solution

The fourth proportional to 5,578.11, 7,697.46 and 3,188.34 is: 4,399.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,578.11 : 7,697.46 = 3,188.34 : x
  2. Step 2: Convert to fraction form
    5,578.11/7,697.46 = 3,188.34/x
  3. Step 3: Cross multiply
    5,578.11x = 7,697.46 × 3,188.34
  4. Step 4: Simplify right side
    5,578.11x = 24,542,119.62
  5. Step 5: Solve for x
    x = 24,542,119.62/5,578.11
  6. Step 6: Final answer
    x = 4,399.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.