Home / 1,942.44-2,909.34-1,076.20

Finding the Fourth Proportional to 1,942.44, 2,909.34 and 1,076.20

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Solution

The fourth proportional to 1,942.44, 2,909.34 and 1,076.20 is: 1,611.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.44 : 2,909.34 = 1,076.20 : x
  2. Step 2: Convert to fraction form
    1,942.44/2,909.34 = 1,076.20/x
  3. Step 3: Cross multiply
    1,942.44x = 2,909.34 × 1,076.20
  4. Step 4: Simplify right side
    1,942.44x = 3,131,031.71
  5. Step 5: Solve for x
    x = 3,131,031.71/1,942.44
  6. Step 6: Final answer
    x = 1,611.91

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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.