Home / 4,391.20-6,601.20-3,101.60

Finding the Fourth Proportional to 4,391.20, 6,601.20 and 3,101.60

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Solution

The fourth proportional to 4,391.20, 6,601.20 and 3,101.60 is: 4,662.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,391.20 : 6,601.20 = 3,101.60 : x
  2. Step 2: Convert to fraction form
    4,391.20/6,601.20 = 3,101.60/x
  3. Step 3: Cross multiply
    4,391.20x = 6,601.20 × 3,101.60
  4. Step 4: Simplify right side
    4,391.20x = 20,474,281.92
  5. Step 5: Solve for x
    x = 20,474,281.92/4,391.20
  6. Step 6: Final answer
    x = 4,662.57

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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.