Home / 3,338.20-5,008.30-998.28

Finding the Fourth Proportional to 3,338.20, 5,008.30 and 998.28

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Solution

The fourth proportional to 3,338.20, 5,008.30 and 998.28 is: 1,497.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,338.20 : 5,008.30 = 998.28 : x
  2. Step 2: Convert to fraction form
    3,338.20/5,008.30 = 998.28/x
  3. Step 3: Cross multiply
    3,338.20x = 5,008.30 × 998.28
  4. Step 4: Simplify right side
    3,338.20x = 4,999,685.72
  5. Step 5: Solve for x
    x = 4,999,685.72/3,338.20
  6. Step 6: Final answer
    x = 1,497.72

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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.