Home / 3,520.67-5,279.18-1,876.77

Finding the Fourth Proportional to 3,520.67, 5,279.18 and 1,876.77

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Solution

The fourth proportional to 3,520.67, 5,279.18 and 1,876.77 is: 2,814.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.67 : 5,279.18 = 1,876.77 : x
  2. Step 2: Convert to fraction form
    3,520.67/5,279.18 = 1,876.77/x
  3. Step 3: Cross multiply
    3,520.67x = 5,279.18 × 1,876.77
  4. Step 4: Simplify right side
    3,520.67x = 9,907,797.26
  5. Step 5: Solve for x
    x = 9,907,797.26/3,520.67
  6. Step 6: Final answer
    x = 2,814.18

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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.