Home / 1,721.03-2,580.31-1,392.37

Finding the Fourth Proportional to 1,721.03, 2,580.31 and 1,392.37

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Solution

The fourth proportional to 1,721.03, 2,580.31 and 1,392.37 is: 2,087.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.03 : 2,580.31 = 1,392.37 : x
  2. Step 2: Convert to fraction form
    1,721.03/2,580.31 = 1,392.37/x
  3. Step 3: Cross multiply
    1,721.03x = 2,580.31 × 1,392.37
  4. Step 4: Simplify right side
    1,721.03x = 3,592,746.23
  5. Step 5: Solve for x
    x = 3,592,746.23/1,721.03
  6. Step 6: Final answer
    x = 2,087.56

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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.