Home / 1,942.42-2,680.26-1,102.85

Finding the Fourth Proportional to 1,942.42, 2,680.26 and 1,102.85

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Solution

The fourth proportional to 1,942.42, 2,680.26 and 1,102.85 is: 1,521.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942.42 : 2,680.26 = 1,102.85 : x
  2. Step 2: Convert to fraction form
    1,942.42/2,680.26 = 1,102.85/x
  3. Step 3: Cross multiply
    1,942.42x = 2,680.26 × 1,102.85
  4. Step 4: Simplify right side
    1,942.42x = 2,955,924.74
  5. Step 5: Solve for x
    x = 2,955,924.74/1,942.42
  6. Step 6: Final answer
    x = 1,521.77

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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.