Home / 1,721.06-2,581.62-1,105.04

Finding the Fourth Proportional to 1,721.06, 2,581.62 and 1,105.04

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Solution

The fourth proportional to 1,721.06, 2,581.62 and 1,105.04 is: 1,657.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.06 : 2,581.62 = 1,105.04 : x
  2. Step 2: Convert to fraction form
    1,721.06/2,581.62 = 1,105.04/x
  3. Step 3: Cross multiply
    1,721.06x = 2,581.62 × 1,105.04
  4. Step 4: Simplify right side
    1,721.06x = 2,852,793.36
  5. Step 5: Solve for x
    x = 2,852,793.36/1,721.06
  6. Step 6: Final answer
    x = 1,657.58

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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.