Home / 2,020.38-2,785.58-1,520.88

Finding the Fourth Proportional to 2,020.38, 2,785.58 and 1,520.88

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Solution

The fourth proportional to 2,020.38, 2,785.58 and 1,520.88 is: 2,096.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,020.38 : 2,785.58 = 1,520.88 : x
  2. Step 2: Convert to fraction form
    2,020.38/2,785.58 = 1,520.88/x
  3. Step 3: Cross multiply
    2,020.38x = 2,785.58 × 1,520.88
  4. Step 4: Simplify right side
    2,020.38x = 4,236,532.91
  5. Step 5: Solve for x
    x = 4,236,532.91/2,020.38
  6. Step 6: Final answer
    x = 2,096.90

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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.