Home / 2,235.43-3,348.28-1,078.75

Finding the Fourth Proportional to 2,235.43, 3,348.28 and 1,078.75

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Solution

The fourth proportional to 2,235.43, 3,348.28 and 1,078.75 is: 1,615.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235.43 : 3,348.28 = 1,078.75 : x
  2. Step 2: Convert to fraction form
    2,235.43/3,348.28 = 1,078.75/x
  3. Step 3: Cross multiply
    2,235.43x = 3,348.28 × 1,078.75
  4. Step 4: Simplify right side
    2,235.43x = 3,611,957.05
  5. Step 5: Solve for x
    x = 3,611,957.05/2,235.43
  6. Step 6: Final answer
    x = 1,615.78

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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.