Home / 2,272.57-3,135.90-1,277.95

Finding the Fourth Proportional to 2,272.57, 3,135.90 and 1,277.95

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Solution

The fourth proportional to 2,272.57, 3,135.90 and 1,277.95 is: 1,763.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.57 : 3,135.90 = 1,277.95 : x
  2. Step 2: Convert to fraction form
    2,272.57/3,135.90 = 1,277.95/x
  3. Step 3: Cross multiply
    2,272.57x = 3,135.90 × 1,277.95
  4. Step 4: Simplify right side
    2,272.57x = 4,007,523.41
  5. Step 5: Solve for x
    x = 4,007,523.41/2,272.57
  6. Step 6: Final answer
    x = 1,763.43

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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.