Home / 1,873.45-2,811.59-704.61

Finding the Fourth Proportional to 1,873.45, 2,811.59 and 704.61

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Solution

The fourth proportional to 1,873.45, 2,811.59 and 704.61 is: 1,057.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,873.45 : 2,811.59 = 704.61 : x
  2. Step 2: Convert to fraction form
    1,873.45/2,811.59 = 704.61/x
  3. Step 3: Cross multiply
    1,873.45x = 2,811.59 × 704.61
  4. Step 4: Simplify right side
    1,873.45x = 1,981,060.36
  5. Step 5: Solve for x
    x = 1,981,060.36/1,873.45
  6. Step 6: Final answer
    x = 1,057.44

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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.