Home / 4,139.38-6,209.31-1,366.09

Finding the Fourth Proportional to 4,139.38, 6,209.31 and 1,366.09

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Solution

The fourth proportional to 4,139.38, 6,209.31 and 1,366.09 is: 2,049.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.38 : 6,209.31 = 1,366.09 : x
  2. Step 2: Convert to fraction form
    4,139.38/6,209.31 = 1,366.09/x
  3. Step 3: Cross multiply
    4,139.38x = 6,209.31 × 1,366.09
  4. Step 4: Simplify right side
    4,139.38x = 8,482,476.30
  5. Step 5: Solve for x
    x = 8,482,476.30/4,139.38
  6. Step 6: Final answer
    x = 2,049.21

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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.