Home / 3,149.20-4,723.92-1,069.30

Finding the Fourth Proportional to 3,149.20, 4,723.92 and 1,069.30

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Solution

The fourth proportional to 3,149.20, 4,723.92 and 1,069.30 is: 1,603.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.20 : 4,723.92 = 1,069.30 : x
  2. Step 2: Convert to fraction form
    3,149.20/4,723.92 = 1,069.30/x
  3. Step 3: Cross multiply
    3,149.20x = 4,723.92 × 1,069.30
  4. Step 4: Simplify right side
    3,149.20x = 5,051,287.66
  5. Step 5: Solve for x
    x = 5,051,287.66/3,149.20
  6. Step 6: Final answer
    x = 1,603.99

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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.