Home / 7,789.71-11,684.45-3,627.39

Finding the Fourth Proportional to 7,789.71, 11,684.45 and 3,627.39

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Solution

The fourth proportional to 7,789.71, 11,684.45 and 3,627.39 is: 5,441.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.71 : 11,684.45 = 3,627.39 : x
  2. Step 2: Convert to fraction form
    7,789.71/11,684.45 = 3,627.39/x
  3. Step 3: Cross multiply
    7,789.71x = 11,684.45 × 3,627.39
  4. Step 4: Simplify right side
    7,789.71x = 42,383,980.53
  5. Step 5: Solve for x
    x = 42,383,980.53/7,789.71
  6. Step 6: Final answer
    x = 5,441.03

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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.