Home / 3,218.43-4,442.13-1,959.90

Finding the Fourth Proportional to 3,218.43, 4,442.13 and 1,959.90

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Solution

The fourth proportional to 3,218.43, 4,442.13 and 1,959.90 is: 2,705.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.43 : 4,442.13 = 1,959.90 : x
  2. Step 2: Convert to fraction form
    3,218.43/4,442.13 = 1,959.90/x
  3. Step 3: Cross multiply
    3,218.43x = 4,442.13 × 1,959.90
  4. Step 4: Simplify right side
    3,218.43x = 8,706,120.79
  5. Step 5: Solve for x
    x = 8,706,120.79/3,218.43
  6. Step 6: Final answer
    x = 2,705.08

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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.