Home / 3,279.49-4,919.19-1,330.36

Finding the Fourth Proportional to 3,279.49, 4,919.19 and 1,330.36

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Solution

The fourth proportional to 3,279.49, 4,919.19 and 1,330.36 is: 1,995.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.49 : 4,919.19 = 1,330.36 : x
  2. Step 2: Convert to fraction form
    3,279.49/4,919.19 = 1,330.36/x
  3. Step 3: Cross multiply
    3,279.49x = 4,919.19 × 1,330.36
  4. Step 4: Simplify right side
    3,279.49x = 6,544,293.61
  5. Step 5: Solve for x
    x = 6,544,293.61/3,279.49
  6. Step 6: Final answer
    x = 1,995.52

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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.