Home / 6,122.80-8,449.64-3,470.12

Finding the Fourth Proportional to 6,122.80, 8,449.64 and 3,470.12

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Solution

The fourth proportional to 6,122.80, 8,449.64 and 3,470.12 is: 4,788.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,122.80 : 8,449.64 = 3,470.12 : x
  2. Step 2: Convert to fraction form
    6,122.80/8,449.64 = 3,470.12/x
  3. Step 3: Cross multiply
    6,122.80x = 8,449.64 × 3,470.12
  4. Step 4: Simplify right side
    6,122.80x = 29,321,231.18
  5. Step 5: Solve for x
    x = 29,321,231.18/6,122.80
  6. Step 6: Final answer
    x = 4,788.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.