Home / 6,286.90-9,418.20-3,686.80

Finding the Fourth Proportional to 6,286.90, 9,418.20 and 3,686.80

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Solution

The fourth proportional to 6,286.90, 9,418.20 and 3,686.80 is: 5,523.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,286.90 : 9,418.20 = 3,686.80 : x
  2. Step 2: Convert to fraction form
    6,286.90/9,418.20 = 3,686.80/x
  3. Step 3: Cross multiply
    6,286.90x = 9,418.20 × 3,686.80
  4. Step 4: Simplify right side
    6,286.90x = 34,723,019.76
  5. Step 5: Solve for x
    x = 34,723,019.76/6,286.90
  6. Step 6: Final answer
    x = 5,523.07

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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.