Home / 2,780.26-3,836.74-1,601.30

Finding the Fourth Proportional to 2,780.26, 3,836.74 and 1,601.30

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Solution

The fourth proportional to 2,780.26, 3,836.74 and 1,601.30 is: 2,209.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.26 : 3,836.74 = 1,601.30 : x
  2. Step 2: Convert to fraction form
    2,780.26/3,836.74 = 1,601.30/x
  3. Step 3: Cross multiply
    2,780.26x = 3,836.74 × 1,601.30
  4. Step 4: Simplify right side
    2,780.26x = 6,143,771.76
  5. Step 5: Solve for x
    x = 6,143,771.76/2,780.26
  6. Step 6: Final answer
    x = 2,209.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.