Home / 7,740.12-11,608.62-3,789.67

Finding the Fourth Proportional to 7,740.12, 11,608.62 and 3,789.67

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Solution

The fourth proportional to 7,740.12, 11,608.62 and 3,789.67 is: 5,683.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,740.12 : 11,608.62 = 3,789.67 : x
  2. Step 2: Convert to fraction form
    7,740.12/11,608.62 = 3,789.67/x
  3. Step 3: Cross multiply
    7,740.12x = 11,608.62 × 3,789.67
  4. Step 4: Simplify right side
    7,740.12x = 43,992,838.96
  5. Step 5: Solve for x
    x = 43,992,838.96/7,740.12
  6. Step 6: Final answer
    x = 5,683.74

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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.