Home / 1,721.56-2,376.30-1,100.56

Finding the Fourth Proportional to 1,721.56, 2,376.30 and 1,100.56

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Solution

The fourth proportional to 1,721.56, 2,376.30 and 1,100.56 is: 1,519.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721.56 : 2,376.30 = 1,100.56 : x
  2. Step 2: Convert to fraction form
    1,721.56/2,376.30 = 1,100.56/x
  3. Step 3: Cross multiply
    1,721.56x = 2,376.30 × 1,100.56
  4. Step 4: Simplify right side
    1,721.56x = 2,615,260.73
  5. Step 5: Solve for x
    x = 2,615,260.73/1,721.56
  6. Step 6: Final answer
    x = 1,519.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.