Home / 2,780.46-3,836.91-1,601.73

Finding the Fourth Proportional to 2,780.46, 3,836.91 and 1,601.73

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Solution

The fourth proportional to 2,780.46, 3,836.91 and 1,601.73 is: 2,210.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.46 : 3,836.91 = 1,601.73 : x
  2. Step 2: Convert to fraction form
    2,780.46/3,836.91 = 1,601.73/x
  3. Step 3: Cross multiply
    2,780.46x = 3,836.91 × 1,601.73
  4. Step 4: Simplify right side
    2,780.46x = 6,145,693.85
  5. Step 5: Solve for x
    x = 6,145,693.85/2,780.46
  6. Step 6: Final answer
    x = 2,210.32

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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.