Home / 5,231.94-7,217.48-3,106.50

Finding the Fourth Proportional to 5,231.94, 7,217.48 and 3,106.50

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Solution

The fourth proportional to 5,231.94, 7,217.48 and 3,106.50 is: 4,285.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.94 : 7,217.48 = 3,106.50 : x
  2. Step 2: Convert to fraction form
    5,231.94/7,217.48 = 3,106.50/x
  3. Step 3: Cross multiply
    5,231.94x = 7,217.48 × 3,106.50
  4. Step 4: Simplify right side
    5,231.94x = 22,421,086.09
  5. Step 5: Solve for x
    x = 22,421,086.09/5,231.94
  6. Step 6: Final answer
    x = 4,285.42

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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.