Home / 5,245.13-7,867.66-2,125.09

Finding the Fourth Proportional to 5,245.13, 7,867.66 and 2,125.09

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Solution

The fourth proportional to 5,245.13, 7,867.66 and 2,125.09 is: 3,187.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.13 : 7,867.66 = 2,125.09 : x
  2. Step 2: Convert to fraction form
    5,245.13/7,867.66 = 2,125.09/x
  3. Step 3: Cross multiply
    5,245.13x = 7,867.66 × 2,125.09
  4. Step 4: Simplify right side
    5,245.13x = 16,719,485.59
  5. Step 5: Solve for x
    x = 16,719,485.59/5,245.13
  6. Step 6: Final answer
    x = 3,187.62

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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.