Home / 3,819.44-5,731.80-1,511.12

Finding the Fourth Proportional to 3,819.44, 5,731.80 and 1,511.12

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Solution

The fourth proportional to 3,819.44, 5,731.80 and 1,511.12 is: 2,267.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,819.44 : 5,731.80 = 1,511.12 : x
  2. Step 2: Convert to fraction form
    3,819.44/5,731.80 = 1,511.12/x
  3. Step 3: Cross multiply
    3,819.44x = 5,731.80 × 1,511.12
  4. Step 4: Simplify right side
    3,819.44x = 8,661,437.62
  5. Step 5: Solve for x
    x = 8,661,437.62/3,819.44
  6. Step 6: Final answer
    x = 2,267.72

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1.5x scale

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.