Home / 5,239.21-7,231.80-3,355.86

Finding the Fourth Proportional to 5,239.21, 7,231.80 and 3,355.86

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Solution

The fourth proportional to 5,239.21, 7,231.80 and 3,355.86 is: 4,632.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,239.21 : 7,231.80 = 3,355.86 : x
  2. Step 2: Convert to fraction form
    5,239.21/7,231.80 = 3,355.86/x
  3. Step 3: Cross multiply
    5,239.21x = 7,231.80 × 3,355.86
  4. Step 4: Simplify right side
    5,239.21x = 24,268,891.57
  5. Step 5: Solve for x
    x = 24,268,891.57/5,239.21
  6. Step 6: Final answer
    x = 4,632.17

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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.