Home / 3,474.20-5,205.81-2,785.34

Finding the Fourth Proportional to 3,474.20, 5,205.81 and 2,785.34

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Solution

The fourth proportional to 3,474.20, 5,205.81 and 2,785.34 is: 4,173.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,474.20 : 5,205.81 = 2,785.34 : x
  2. Step 2: Convert to fraction form
    3,474.20/5,205.81 = 2,785.34/x
  3. Step 3: Cross multiply
    3,474.20x = 5,205.81 × 2,785.34
  4. Step 4: Simplify right side
    3,474.20x = 14,499,950.83
  5. Step 5: Solve for x
    x = 14,499,950.83/3,474.20
  6. Step 6: Final answer
    x = 4,173.61

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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.