Home / 5,647.90-7,793.46-3,129.37

Finding the Fourth Proportional to 5,647.90, 7,793.46 and 3,129.37

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Solution

The fourth proportional to 5,647.90, 7,793.46 and 3,129.37 is: 4,318.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,647.90 : 7,793.46 = 3,129.37 : x
  2. Step 2: Convert to fraction form
    5,647.90/7,793.46 = 3,129.37/x
  3. Step 3: Cross multiply
    5,647.90x = 7,793.46 × 3,129.37
  4. Step 4: Simplify right side
    5,647.90x = 24,388,629.66
  5. Step 5: Solve for x
    x = 24,388,629.66/5,647.90
  6. Step 6: Final answer
    x = 4,318.18

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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.