Home / 1,721.07-2,580.36-1,227.48

Finding the Fourth Proportional to 1,721.07, 2,580.36 and 1,227.48

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Solution

The fourth proportional to 1,721.07, 2,580.36 and 1,227.48 is: 1,840.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.07 : 2,580.36 = 1,227.48 : x
  2. Step 2: Convert to fraction form
    1,721.07/2,580.36 = 1,227.48/x
  3. Step 3: Cross multiply
    1,721.07x = 2,580.36 × 1,227.48
  4. Step 4: Simplify right side
    1,721.07x = 3,167,340.29
  5. Step 5: Solve for x
    x = 3,167,340.29/1,721.07
  6. Step 6: Final answer
    x = 1,840.33

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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.