Home / 2,218.39-3,322.12-1,394.62

Finding the Fourth Proportional to 2,218.39, 3,322.12 and 1,394.62

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Solution

The fourth proportional to 2,218.39, 3,322.12 and 1,394.62 is: 2,088.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.39 : 3,322.12 = 1,394.62 : x
  2. Step 2: Convert to fraction form
    2,218.39/3,322.12 = 1,394.62/x
  3. Step 3: Cross multiply
    2,218.39x = 3,322.12 × 1,394.62
  4. Step 4: Simplify right side
    2,218.39x = 4,633,088.02
  5. Step 5: Solve for x
    x = 4,633,088.02/2,218.39
  6. Step 6: Final answer
    x = 2,088.49

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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.