Home / 8,741.58-13,100.68-3,189.70

Finding the Fourth Proportional to 8,741.58, 13,100.68 and 3,189.70

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Solution

The fourth proportional to 8,741.58, 13,100.68 and 3,189.70 is: 4,780.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,741.58 : 13,100.68 = 3,189.70 : x
  2. Step 2: Convert to fraction form
    8,741.58/13,100.68 = 3,189.70/x
  3. Step 3: Cross multiply
    8,741.58x = 13,100.68 × 3,189.70
  4. Step 4: Simplify right side
    8,741.58x = 41,787,239.00
  5. Step 5: Solve for x
    x = 41,787,239.00/8,741.58
  6. Step 6: Final answer
    x = 4,780.28

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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.