Home / 3,298.38-4,550.49-2,120.10

Finding the Fourth Proportional to 3,298.38, 4,550.49 and 2,120.10

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Solution

The fourth proportional to 3,298.38, 4,550.49 and 2,120.10 is: 2,924.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,298.38 : 4,550.49 = 2,120.10 : x
  2. Step 2: Convert to fraction form
    3,298.38/4,550.49 = 2,120.10/x
  3. Step 3: Cross multiply
    3,298.38x = 4,550.49 × 2,120.10
  4. Step 4: Simplify right side
    3,298.38x = 9,647,493.85
  5. Step 5: Solve for x
    x = 9,647,493.85/3,298.38
  6. Step 6: Final answer
    x = 2,924.92

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Half scale
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Double scale
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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.