Home / 1,722.69-2,378.97-1,251.27

Finding the Fourth Proportional to 1,722.69, 2,378.97 and 1,251.27

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Solution

The fourth proportional to 1,722.69, 2,378.97 and 1,251.27 is: 1,727.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.69 : 2,378.97 = 1,251.27 : x
  2. Step 2: Convert to fraction form
    1,722.69/2,378.97 = 1,251.27/x
  3. Step 3: Cross multiply
    1,722.69x = 2,378.97 × 1,251.27
  4. Step 4: Simplify right side
    1,722.69x = 2,976,733.79
  5. Step 5: Solve for x
    x = 2,976,733.79/1,722.69
  6. Step 6: Final answer
    x = 1,727.96

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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.