Home / 3,751.20-5,618.70-3,265.20

Finding the Fourth Proportional to 3,751.20, 5,618.70 and 3,265.20

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Solution

The fourth proportional to 3,751.20, 5,618.70 and 3,265.20 is: 4,890.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.20 : 5,618.70 = 3,265.20 : x
  2. Step 2: Convert to fraction form
    3,751.20/5,618.70 = 3,265.20/x
  3. Step 3: Cross multiply
    3,751.20x = 5,618.70 × 3,265.20
  4. Step 4: Simplify right side
    3,751.20x = 18,346,179.24
  5. Step 5: Solve for x
    x = 18,346,179.24/3,751.20
  6. Step 6: Final answer
    x = 4,890.75

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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.