Home / 8,741.25-13,108.79-2,817.90

Finding the Fourth Proportional to 8,741.25, 13,108.79 and 2,817.90

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Solution

The fourth proportional to 8,741.25, 13,108.79 and 2,817.90 is: 4,225.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,741.25 : 13,108.79 = 2,817.90 : x
  2. Step 2: Convert to fraction form
    8,741.25/13,108.79 = 2,817.90/x
  3. Step 3: Cross multiply
    8,741.25x = 13,108.79 × 2,817.90
  4. Step 4: Simplify right side
    8,741.25x = 36,939,245.25
  5. Step 5: Solve for x
    x = 36,939,245.25/8,741.25
  6. Step 6: Final answer
    x = 4,225.85

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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.