Home / 4,188.20-6,286.35-2,110.55

Finding the Fourth Proportional to 4,188.20, 6,286.35 and 2,110.55

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Solution

The fourth proportional to 4,188.20, 6,286.35 and 2,110.55 is: 3,167.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,188.20 : 6,286.35 = 2,110.55 : x
  2. Step 2: Convert to fraction form
    4,188.20/6,286.35 = 2,110.55/x
  3. Step 3: Cross multiply
    4,188.20x = 6,286.35 × 2,110.55
  4. Step 4: Simplify right side
    4,188.20x = 13,267,655.99
  5. Step 5: Solve for x
    x = 13,267,655.99/4,188.20
  6. Step 6: Final answer
    x = 3,167.87

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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.