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Finding the Fourth Proportional to 2,797.35, 3,856.27 and 1,955.44

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Solution

The fourth proportional to 2,797.35, 3,856.27 and 1,955.44 is: 2,695.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,797.35 : 3,856.27 = 1,955.44 : x
  2. Step 2: Convert to fraction form
    2,797.35/3,856.27 = 1,955.44/x
  3. Step 3: Cross multiply
    2,797.35x = 3,856.27 × 1,955.44
  4. Step 4: Simplify right side
    2,797.35x = 7,540,704.61
  5. Step 5: Solve for x
    x = 7,540,704.61/2,797.35
  6. Step 6: Final answer
    x = 2,695.66

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1.5x scale

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.