Home / 1,809.62-2,717.51-1,120.35

Finding the Fourth Proportional to 1,809.62, 2,717.51 and 1,120.35

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Solution

The fourth proportional to 1,809.62, 2,717.51 and 1,120.35 is: 1,682.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,809.62 : 2,717.51 = 1,120.35 : x
  2. Step 2: Convert to fraction form
    1,809.62/2,717.51 = 1,120.35/x
  3. Step 3: Cross multiply
    1,809.62x = 2,717.51 × 1,120.35
  4. Step 4: Simplify right side
    1,809.62x = 3,044,556.73
  5. Step 5: Solve for x
    x = 3,044,556.73/1,809.62
  6. Step 6: Final answer
    x = 1,682.43

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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.