Home / 3,418.20-4,717.77-2,002.20

Finding the Fourth Proportional to 3,418.20, 4,717.77 and 2,002.20

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Solution

The fourth proportional to 3,418.20, 4,717.77 and 2,002.20 is: 2,763.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.20 : 4,717.77 = 2,002.20 : x
  2. Step 2: Convert to fraction form
    3,418.20/4,717.77 = 2,002.20/x
  3. Step 3: Cross multiply
    3,418.20x = 4,717.77 × 2,002.20
  4. Step 4: Simplify right side
    3,418.20x = 9,445,919.09
  5. Step 5: Solve for x
    x = 9,445,919.09/3,418.20
  6. Step 6: Final answer
    x = 2,763.42

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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.