Home / 5,782.26-7,979.46-3,129.60

Finding the Fourth Proportional to 5,782.26, 7,979.46 and 3,129.60

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Solution

The fourth proportional to 5,782.26, 7,979.46 and 3,129.60 is: 4,318.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,782.26 : 7,979.46 = 3,129.60 : x
  2. Step 2: Convert to fraction form
    5,782.26/7,979.46 = 3,129.60/x
  3. Step 3: Cross multiply
    5,782.26x = 7,979.46 × 3,129.60
  4. Step 4: Simplify right side
    5,782.26x = 24,972,518.02
  5. Step 5: Solve for x
    x = 24,972,518.02/5,782.26
  6. Step 6: Final answer
    x = 4,318.82

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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.