Home / 6,626.63-9,939.73-3,115.79

Finding the Fourth Proportional to 6,626.63, 9,939.73 and 3,115.79

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Solution

The fourth proportional to 6,626.63, 9,939.73 and 3,115.79 is: 4,673.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,626.63 : 9,939.73 = 3,115.79 : x
  2. Step 2: Convert to fraction form
    6,626.63/9,939.73 = 3,115.79/x
  3. Step 3: Cross multiply
    6,626.63x = 9,939.73 × 3,115.79
  4. Step 4: Simplify right side
    6,626.63x = 30,970,046.06
  5. Step 5: Solve for x
    x = 30,970,046.06/6,626.63
  6. Step 6: Final answer
    x = 4,673.58

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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.