Home / 1,305.18-1,940.97-1,264.17

Finding the Fourth Proportional to 1,305.18, 1,940.97 and 1,264.17

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Solution

The fourth proportional to 1,305.18, 1,940.97 and 1,264.17 is: 1,879.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305.18 : 1,940.97 = 1,264.17 : x
  2. Step 2: Convert to fraction form
    1,305.18/1,940.97 = 1,264.17/x
  3. Step 3: Cross multiply
    1,305.18x = 1,940.97 × 1,264.17
  4. Step 4: Simplify right side
    1,305.18x = 2,453,716.04
  5. Step 5: Solve for x
    x = 2,453,716.04/1,305.18
  6. Step 6: Final answer
    x = 1,879.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.