Home / 7,785.05-11,661.30-3,628.67

Finding the Fourth Proportional to 7,785.05, 11,661.30 and 3,628.67

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Solution

The fourth proportional to 7,785.05, 11,661.30 and 3,628.67 is: 5,435.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.05 : 11,661.30 = 3,628.67 : x
  2. Step 2: Convert to fraction form
    7,785.05/11,661.30 = 3,628.67/x
  3. Step 3: Cross multiply
    7,785.05x = 11,661.30 × 3,628.67
  4. Step 4: Simplify right side
    7,785.05x = 42,314,951.16
  5. Step 5: Solve for x
    x = 42,314,951.16/7,785.05
  6. Step 6: Final answer
    x = 5,435.42

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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.