Home / 6,391.50-9,581.13-3,270.30

Finding the Fourth Proportional to 6,391.50, 9,581.13 and 3,270.30

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Solution

The fourth proportional to 6,391.50, 9,581.13 and 3,270.30 is: 4,902.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,391.50 : 9,581.13 = 3,270.30 : x
  2. Step 2: Convert to fraction form
    6,391.50/9,581.13 = 3,270.30/x
  3. Step 3: Cross multiply
    6,391.50x = 9,581.13 × 3,270.30
  4. Step 4: Simplify right side
    6,391.50x = 31,333,169.44
  5. Step 5: Solve for x
    x = 31,333,169.44/6,391.50
  6. Step 6: Final answer
    x = 4,902.32

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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.