Home / 6,220.85-9,318.75-3,091.38

Finding the Fourth Proportional to 6,220.85, 9,318.75 and 3,091.38

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Solution

The fourth proportional to 6,220.85, 9,318.75 and 3,091.38 is: 4,630.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,220.85 : 9,318.75 = 3,091.38 : x
  2. Step 2: Convert to fraction form
    6,220.85/9,318.75 = 3,091.38/x
  3. Step 3: Cross multiply
    6,220.85x = 9,318.75 × 3,091.38
  4. Step 4: Simplify right side
    6,220.85x = 28,807,797.38
  5. Step 5: Solve for x
    x = 28,807,797.38/6,220.85
  6. Step 6: Final answer
    x = 4,630.85

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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.