Home / 4,147.78-5,724.66-2,379.04

Finding the Fourth Proportional to 4,147.78, 5,724.66 and 2,379.04

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Solution

The fourth proportional to 4,147.78, 5,724.66 and 2,379.04 is: 3,283.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,147.78 : 5,724.66 = 2,379.04 : x
  2. Step 2: Convert to fraction form
    4,147.78/5,724.66 = 2,379.04/x
  3. Step 3: Cross multiply
    4,147.78x = 5,724.66 × 2,379.04
  4. Step 4: Simplify right side
    4,147.78x = 13,619,195.13
  5. Step 5: Solve for x
    x = 13,619,195.13/4,147.78
  6. Step 6: Final answer
    x = 3,283.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.