Home / 1,915.45-2,874.79-1,175.92

Finding the Fourth Proportional to 1,915.45, 2,874.79 and 1,175.92

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Solution

The fourth proportional to 1,915.45, 2,874.79 and 1,175.92 is: 1,764.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.45 : 2,874.79 = 1,175.92 : x
  2. Step 2: Convert to fraction form
    1,915.45/2,874.79 = 1,175.92/x
  3. Step 3: Cross multiply
    1,915.45x = 2,874.79 × 1,175.92
  4. Step 4: Simplify right side
    1,915.45x = 3,380,517.34
  5. Step 5: Solve for x
    x = 3,380,517.34/1,915.45
  6. Step 6: Final answer
    x = 1,764.87

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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.