Home / 1,915.20-2,855.97-1,763.73

Finding the Fourth Proportional to 1,915.20, 2,855.97 and 1,763.73

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Solution

The fourth proportional to 1,915.20, 2,855.97 and 1,763.73 is: 2,630.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915.20 : 2,855.97 = 1,763.73 : x
  2. Step 2: Convert to fraction form
    1,915.20/2,855.97 = 1,763.73/x
  3. Step 3: Cross multiply
    1,915.20x = 2,855.97 × 1,763.73
  4. Step 4: Simplify right side
    1,915.20x = 5,037,159.97
  5. Step 5: Solve for x
    x = 5,037,159.97/1,915.20
  6. Step 6: Final answer
    x = 2,630.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.