Home / 1,721.35-2,580.66-625.57

Finding the Fourth Proportional to 1,721.35, 2,580.66 and 625.57

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Solution

The fourth proportional to 1,721.35, 2,580.66 and 625.57 is: 937.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.35 : 2,580.66 = 625.57 : x
  2. Step 2: Convert to fraction form
    1,721.35/2,580.66 = 625.57/x
  3. Step 3: Cross multiply
    1,721.35x = 2,580.66 × 625.57
  4. Step 4: Simplify right side
    1,721.35x = 1,614,391.54
  5. Step 5: Solve for x
    x = 1,614,391.54/1,721.35
  6. Step 6: Final answer
    x = 937.86

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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.