Home / 1,722.09-2,583.68-748.34

Finding the Fourth Proportional to 1,722.09, 2,583.68 and 748.34

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Solution

The fourth proportional to 1,722.09, 2,583.68 and 748.34 is: 1,122.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.09 : 2,583.68 = 748.34 : x
  2. Step 2: Convert to fraction form
    1,722.09/2,583.68 = 748.34/x
  3. Step 3: Cross multiply
    1,722.09x = 2,583.68 × 748.34
  4. Step 4: Simplify right side
    1,722.09x = 1,933,468.33
  5. Step 5: Solve for x
    x = 1,933,468.33/1,722.09
  6. Step 6: Final answer
    x = 1,122.74

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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.