Home / 2,379.35-3,564.58-1,991.85

Finding the Fourth Proportional to 2,379.35, 3,564.58 and 1,991.85

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Solution

The fourth proportional to 2,379.35, 3,564.58 and 1,991.85 is: 2,984.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.35 : 3,564.58 = 1,991.85 : x
  2. Step 2: Convert to fraction form
    2,379.35/3,564.58 = 1,991.85/x
  3. Step 3: Cross multiply
    2,379.35x = 3,564.58 × 1,991.85
  4. Step 4: Simplify right side
    2,379.35x = 7,100,108.67
  5. Step 5: Solve for x
    x = 7,100,108.67/2,379.35
  6. Step 6: Final answer
    x = 2,984.05

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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.