Home / 3,079.38-4,619.88-1,519.32

Finding the Fourth Proportional to 3,079.38, 4,619.88 and 1,519.32

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Solution

The fourth proportional to 3,079.38, 4,619.88 and 1,519.32 is: 2,279.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.38 : 4,619.88 = 1,519.32 : x
  2. Step 2: Convert to fraction form
    3,079.38/4,619.88 = 1,519.32/x
  3. Step 3: Cross multiply
    3,079.38x = 4,619.88 × 1,519.32
  4. Step 4: Simplify right side
    3,079.38x = 7,019,076.08
  5. Step 5: Solve for x
    x = 7,019,076.08/3,079.38
  6. Step 6: Final answer
    x = 2,279.38

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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.