Home / 1,722.20-2,375.64-1,023.44

Finding the Fourth Proportional to 1,722.20, 2,375.64 and 1,023.44

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Solution

The fourth proportional to 1,722.20, 2,375.64 and 1,023.44 is: 1,411.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.20 : 2,375.64 = 1,023.44 : x
  2. Step 2: Convert to fraction form
    1,722.20/2,375.64 = 1,023.44/x
  3. Step 3: Cross multiply
    1,722.20x = 2,375.64 × 1,023.44
  4. Step 4: Simplify right side
    1,722.20x = 2,431,325.00
  5. Step 5: Solve for x
    x = 2,431,325.00/1,722.20
  6. Step 6: Final answer
    x = 1,411.76

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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.