Home / 2,218.11-3,328.83-832.81

Finding the Fourth Proportional to 2,218.11, 3,328.83 and 832.81

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Solution

The fourth proportional to 2,218.11, 3,328.83 and 832.81 is: 1,249.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.11 : 3,328.83 = 832.81 : x
  2. Step 2: Convert to fraction form
    2,218.11/3,328.83 = 832.81/x
  3. Step 3: Cross multiply
    2,218.11x = 3,328.83 × 832.81
  4. Step 4: Simplify right side
    2,218.11x = 2,772,282.91
  5. Step 5: Solve for x
    x = 2,772,282.91/2,218.11
  6. Step 6: Final answer
    x = 1,249.84

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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.