Home / 1,722.48-2,371.32-1,328.82

Finding the Fourth Proportional to 1,722.48, 2,371.32 and 1,328.82

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Solution

The fourth proportional to 1,722.48, 2,371.32 and 1,328.82 is: 1,829.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,722.48 : 2,371.32 = 1,328.82 : x
  2. Step 2: Convert to fraction form
    1,722.48/2,371.32 = 1,328.82/x
  3. Step 3: Cross multiply
    1,722.48x = 2,371.32 × 1,328.82
  4. Step 4: Simplify right side
    1,722.48x = 3,151,057.44
  5. Step 5: Solve for x
    x = 3,151,057.44/1,722.48
  6. Step 6: Final answer
    x = 1,829.37

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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.