Home / 3,511.72-5,263.50-1,319.05

Finding the Fourth Proportional to 3,511.72, 5,263.50 and 1,319.05

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Solution

The fourth proportional to 3,511.72, 5,263.50 and 1,319.05 is: 1,977.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,511.72 : 5,263.50 = 1,319.05 : x
  2. Step 2: Convert to fraction form
    3,511.72/5,263.50 = 1,319.05/x
  3. Step 3: Cross multiply
    3,511.72x = 5,263.50 × 1,319.05
  4. Step 4: Simplify right side
    3,511.72x = 6,942,819.68
  5. Step 5: Solve for x
    x = 6,942,819.68/3,511.72
  6. Step 6: Final answer
    x = 1,977.04

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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.