Home / 2,920.88-4,380.54-1,996.28

Finding the Fourth Proportional to 2,920.88, 4,380.54 and 1,996.28

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Solution

The fourth proportional to 2,920.88, 4,380.54 and 1,996.28 is: 2,993.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.88 : 4,380.54 = 1,996.28 : x
  2. Step 2: Convert to fraction form
    2,920.88/4,380.54 = 1,996.28/x
  3. Step 3: Cross multiply
    2,920.88x = 4,380.54 × 1,996.28
  4. Step 4: Simplify right side
    2,920.88x = 8,744,784.39
  5. Step 5: Solve for x
    x = 8,744,784.39/2,920.88
  6. Step 6: Final answer
    x = 2,993.89

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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.