Home / 3,039.39-4,190.54-2,479.28

Finding the Fourth Proportional to 3,039.39, 4,190.54 and 2,479.28

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Solution

The fourth proportional to 3,039.39, 4,190.54 and 2,479.28 is: 3,418.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,039.39 : 4,190.54 = 2,479.28 : x
  2. Step 2: Convert to fraction form
    3,039.39/4,190.54 = 2,479.28/x
  3. Step 3: Cross multiply
    3,039.39x = 4,190.54 × 2,479.28
  4. Step 4: Simplify right side
    3,039.39x = 10,389,488.66
  5. Step 5: Solve for x
    x = 10,389,488.66/3,039.39
  6. Step 6: Final answer
    x = 3,418.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.