Home / 2,785.20-4,169.70-2,704.20

Finding the Fourth Proportional to 2,785.20, 4,169.70 and 2,704.20

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Solution

The fourth proportional to 2,785.20, 4,169.70 and 2,704.20 is: 4,048.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.20 : 4,169.70 = 2,704.20 : x
  2. Step 2: Convert to fraction form
    2,785.20/4,169.70 = 2,704.20/x
  3. Step 3: Cross multiply
    2,785.20x = 4,169.70 × 2,704.20
  4. Step 4: Simplify right side
    2,785.20x = 11,275,702.74
  5. Step 5: Solve for x
    x = 11,275,702.74/2,785.20
  6. Step 6: Final answer
    x = 4,048.44

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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.