Home / 1,721.46-2,580.03-1,072.38

Finding the Fourth Proportional to 1,721.46, 2,580.03 and 1,072.38

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Solution

The fourth proportional to 1,721.46, 2,580.03 and 1,072.38 is: 1,607.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.46 : 2,580.03 = 1,072.38 : x
  2. Step 2: Convert to fraction form
    1,721.46/2,580.03 = 1,072.38/x
  3. Step 3: Cross multiply
    1,721.46x = 2,580.03 × 1,072.38
  4. Step 4: Simplify right side
    1,721.46x = 2,766,772.57
  5. Step 5: Solve for x
    x = 2,766,772.57/1,721.46
  6. Step 6: Final answer
    x = 1,607.22

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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.