Home / 1,721.22-2,580.94-625.29

Finding the Fourth Proportional to 1,721.22, 2,580.94 and 625.29

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Solution

The fourth proportional to 1,721.22, 2,580.94 and 625.29 is: 937.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.22 : 2,580.94 = 625.29 : x
  2. Step 2: Convert to fraction form
    1,721.22/2,580.94 = 625.29/x
  3. Step 3: Cross multiply
    1,721.22x = 2,580.94 × 625.29
  4. Step 4: Simplify right side
    1,721.22x = 1,613,835.97
  5. Step 5: Solve for x
    x = 1,613,835.97/1,721.22
  6. Step 6: Final answer
    x = 937.61

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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.