Home / 5,749.75-7,934.47-3,231.80

Finding the Fourth Proportional to 5,749.75, 7,934.47 and 3,231.80

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Solution

The fourth proportional to 5,749.75, 7,934.47 and 3,231.80 is: 4,459.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,749.75 : 7,934.47 = 3,231.80 : x
  2. Step 2: Convert to fraction form
    5,749.75/7,934.47 = 3,231.80/x
  3. Step 3: Cross multiply
    5,749.75x = 7,934.47 × 3,231.80
  4. Step 4: Simplify right side
    5,749.75x = 25,642,580.47
  5. Step 5: Solve for x
    x = 25,642,580.47/5,749.75
  6. Step 6: Final answer
    x = 4,459.78

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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.