Home / 2,002.20-3,003.30-1,451.40

Finding the Fourth Proportional to 2,002.20, 3,003.30 and 1,451.40

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Solution

The fourth proportional to 2,002.20, 3,003.30 and 1,451.40 is: 2,177.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,002.20 : 3,003.30 = 1,451.40 : x
  2. Step 2: Convert to fraction form
    2,002.20/3,003.30 = 1,451.40/x
  3. Step 3: Cross multiply
    2,002.20x = 3,003.30 × 1,451.40
  4. Step 4: Simplify right side
    2,002.20x = 4,358,989.62
  5. Step 5: Solve for x
    x = 4,358,989.62/2,002.20
  6. Step 6: Final answer
    x = 2,177.10

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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.