Home / 4,155.20-6,229.15-1,692.09

Finding the Fourth Proportional to 4,155.20, 6,229.15 and 1,692.09

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Solution

The fourth proportional to 4,155.20, 6,229.15 and 1,692.09 is: 2,536.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,155.20 : 6,229.15 = 1,692.09 : x
  2. Step 2: Convert to fraction form
    4,155.20/6,229.15 = 1,692.09/x
  3. Step 3: Cross multiply
    4,155.20x = 6,229.15 × 1,692.09
  4. Step 4: Simplify right side
    4,155.20x = 10,540,287.71
  5. Step 5: Solve for x
    x = 10,540,287.71/4,155.20
  6. Step 6: Final answer
    x = 2,536.65

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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.