Home / 2,738.32-4,101.36-1,275.28

Finding the Fourth Proportional to 2,738.32, 4,101.36 and 1,275.28

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Solution

The fourth proportional to 2,738.32, 4,101.36 and 1,275.28 is: 1,910.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.32 : 4,101.36 = 1,275.28 : x
  2. Step 2: Convert to fraction form
    2,738.32/4,101.36 = 1,275.28/x
  3. Step 3: Cross multiply
    2,738.32x = 4,101.36 × 1,275.28
  4. Step 4: Simplify right side
    2,738.32x = 5,230,382.38
  5. Step 5: Solve for x
    x = 5,230,382.38/2,738.32
  6. Step 6: Final answer
    x = 1,910.07

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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.