Home / 2,218.22-3,328.30-1,191.02

Finding the Fourth Proportional to 2,218.22, 3,328.30 and 1,191.02

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Solution

The fourth proportional to 2,218.22, 3,328.30 and 1,191.02 is: 1,787.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.22 : 3,328.30 = 1,191.02 : x
  2. Step 2: Convert to fraction form
    2,218.22/3,328.30 = 1,191.02/x
  3. Step 3: Cross multiply
    2,218.22x = 3,328.30 × 1,191.02
  4. Step 4: Simplify right side
    2,218.22x = 3,964,071.87
  5. Step 5: Solve for x
    x = 3,964,071.87/2,218.22
  6. Step 6: Final answer
    x = 1,787.05

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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.