Home / 1,968.86-2,716.11-1,260.36

Finding the Fourth Proportional to 1,968.86, 2,716.11 and 1,260.36

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Solution

The fourth proportional to 1,968.86, 2,716.11 and 1,260.36 is: 1,738.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.86 : 2,716.11 = 1,260.36 : x
  2. Step 2: Convert to fraction form
    1,968.86/2,716.11 = 1,260.36/x
  3. Step 3: Cross multiply
    1,968.86x = 2,716.11 × 1,260.36
  4. Step 4: Simplify right side
    1,968.86x = 3,423,276.40
  5. Step 5: Solve for x
    x = 3,423,276.40/1,968.86
  6. Step 6: Final answer
    x = 1,738.71

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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.