Home / 2,000.20-2,760.42-1,380.04

Finding the Fourth Proportional to 2,000.20, 2,760.42 and 1,380.04

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Solution

The fourth proportional to 2,000.20, 2,760.42 and 1,380.04 is: 1,904.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,000.20 : 2,760.42 = 1,380.04 : x
  2. Step 2: Convert to fraction form
    2,000.20/2,760.42 = 1,380.04/x
  3. Step 3: Cross multiply
    2,000.20x = 2,760.42 × 1,380.04
  4. Step 4: Simplify right side
    2,000.20x = 3,809,490.02
  5. Step 5: Solve for x
    x = 3,809,490.02/2,000.20
  6. Step 6: Final answer
    x = 1,904.55

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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.