Home / 5,209.39-7,806.25-2,086.30

Finding the Fourth Proportional to 5,209.39, 7,806.25 and 2,086.30

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Solution

The fourth proportional to 5,209.39, 7,806.25 and 2,086.30 is: 3,126.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,209.39 : 7,806.25 = 2,086.30 : x
  2. Step 2: Convert to fraction form
    5,209.39/7,806.25 = 2,086.30/x
  3. Step 3: Cross multiply
    5,209.39x = 7,806.25 × 2,086.30
  4. Step 4: Simplify right side
    5,209.39x = 16,286,179.38
  5. Step 5: Solve for x
    x = 16,286,179.38/5,209.39
  6. Step 6: Final answer
    x = 3,126.31

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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.