Home / 5,729-8,592.18-3,231.28

Finding the Fourth Proportional to 5,729, 8,592.18 and 3,231.28

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Solution

The fourth proportional to 5,729, 8,592.18 and 3,231.28 is: 4,846.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,729 : 8,592.18 = 3,231.28 : x
  2. Step 2: Convert to fraction form
    5,729/8,592.18 = 3,231.28/x
  3. Step 3: Cross multiply
    5,729x = 8,592.18 × 3,231.28
  4. Step 4: Simplify right side
    5,729x = 27,763,739.39
  5. Step 5: Solve for x
    x = 27,763,739.39/5,729
  6. Step 6: Final answer
    x = 4,846.18

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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.