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Finding the Fourth Proportional to 6,162.80, 9,231.20 and 4,083.80

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Solution

The fourth proportional to 6,162.80, 9,231.20 and 4,083.80 is: 6,117.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,162.80 : 9,231.20 = 4,083.80 : x
  2. Step 2: Convert to fraction form
    6,162.80/9,231.20 = 4,083.80/x
  3. Step 3: Cross multiply
    6,162.80x = 9,231.20 × 4,083.80
  4. Step 4: Simplify right side
    6,162.80x = 37,698,374.56
  5. Step 5: Solve for x
    x = 37,698,374.56/6,162.80
  6. Step 6: Final answer
    x = 6,117.09

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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.