Home / 3,642.60-5,456.70-1,996.20

Finding the Fourth Proportional to 3,642.60, 5,456.70 and 1,996.20

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Solution

The fourth proportional to 3,642.60, 5,456.70 and 1,996.20 is: 2,990.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,642.60 : 5,456.70 = 1,996.20 : x
  2. Step 2: Convert to fraction form
    3,642.60/5,456.70 = 1,996.20/x
  3. Step 3: Cross multiply
    3,642.60x = 5,456.70 × 1,996.20
  4. Step 4: Simplify right side
    3,642.60x = 10,892,664.54
  5. Step 5: Solve for x
    x = 10,892,664.54/3,642.60
  6. Step 6: Final answer
    x = 2,990.35

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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.