Home / 1,722.57-2,377.68-1,101.57

Finding the Fourth Proportional to 1,722.57, 2,377.68 and 1,101.57

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Solution

The fourth proportional to 1,722.57, 2,377.68 and 1,101.57 is: 1,520.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.57 : 2,377.68 = 1,101.57 : x
  2. Step 2: Convert to fraction form
    1,722.57/2,377.68 = 1,101.57/x
  3. Step 3: Cross multiply
    1,722.57x = 2,377.68 × 1,101.57
  4. Step 4: Simplify right side
    1,722.57x = 2,619,180.96
  5. Step 5: Solve for x
    x = 2,619,180.96/1,722.57
  6. Step 6: Final answer
    x = 1,520.51

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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.