Home / 5,315.31-7,973.82-3,236.85

Finding the Fourth Proportional to 5,315.31, 7,973.82 and 3,236.85

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Solution

The fourth proportional to 5,315.31, 7,973.82 and 3,236.85 is: 4,855.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.31 : 7,973.82 = 3,236.85 : x
  2. Step 2: Convert to fraction form
    5,315.31/7,973.82 = 3,236.85/x
  3. Step 3: Cross multiply
    5,315.31x = 7,973.82 × 3,236.85
  4. Step 4: Simplify right side
    5,315.31x = 25,810,059.27
  5. Step 5: Solve for x
    x = 25,810,059.27/5,315.31
  6. Step 6: Final answer
    x = 4,855.80

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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.