Home / 1,722.41-2,376.89-936.46

Finding the Fourth Proportional to 1,722.41, 2,376.89 and 936.46

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Solution

The fourth proportional to 1,722.41, 2,376.89 and 936.46 is: 1,292.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.41 : 2,376.89 = 936.46 : x
  2. Step 2: Convert to fraction form
    1,722.41/2,376.89 = 936.46/x
  3. Step 3: Cross multiply
    1,722.41x = 2,376.89 × 936.46
  4. Step 4: Simplify right side
    1,722.41x = 2,225,862.41
  5. Step 5: Solve for x
    x = 2,225,862.41/1,722.41
  6. Step 6: Final answer
    x = 1,292.30

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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.