Home / 4,083.20-6,127.20-1,485.80

Finding the Fourth Proportional to 4,083.20, 6,127.20 and 1,485.80

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Solution

The fourth proportional to 4,083.20, 6,127.20 and 1,485.80 is: 2,229.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,083.20 : 6,127.20 = 1,485.80 : x
  2. Step 2: Convert to fraction form
    4,083.20/6,127.20 = 1,485.80/x
  3. Step 3: Cross multiply
    4,083.20x = 6,127.20 × 1,485.80
  4. Step 4: Simplify right side
    4,083.20x = 9,103,793.76
  5. Step 5: Solve for x
    x = 9,103,793.76/4,083.20
  6. Step 6: Final answer
    x = 2,229.57

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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.