Home / 7,738.60-11,601.50-3,845.72

Finding the Fourth Proportional to 7,738.60, 11,601.50 and 3,845.72

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Solution

The fourth proportional to 7,738.60, 11,601.50 and 3,845.72 is: 5,765.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.60 : 11,601.50 = 3,845.72 : x
  2. Step 2: Convert to fraction form
    7,738.60/11,601.50 = 3,845.72/x
  3. Step 3: Cross multiply
    7,738.60x = 11,601.50 × 3,845.72
  4. Step 4: Simplify right side
    7,738.60x = 44,616,120.58
  5. Step 5: Solve for x
    x = 44,616,120.58/7,738.60
  6. Step 6: Final answer
    x = 5,765.40

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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.