Home / 2,004.20-3,003.60-1,426.40

Finding the Fourth Proportional to 2,004.20, 3,003.60 and 1,426.40

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Solution

The fourth proportional to 2,004.20, 3,003.60 and 1,426.40 is: 2,137.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,004.20 : 3,003.60 = 1,426.40 : x
  2. Step 2: Convert to fraction form
    2,004.20/3,003.60 = 1,426.40/x
  3. Step 3: Cross multiply
    2,004.20x = 3,003.60 × 1,426.40
  4. Step 4: Simplify right side
    2,004.20x = 4,284,335.04
  5. Step 5: Solve for x
    x = 4,284,335.04/2,004.20
  6. Step 6: Final answer
    x = 2,137.68

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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.