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Finding the Fourth Proportional to 1,960.44, 2,935.20 and 1,228.20

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Solution

The fourth proportional to 1,960.44, 2,935.20 and 1,228.20 is: 1,838.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,960.44 : 2,935.20 = 1,228.20 : x
  2. Step 2: Convert to fraction form
    1,960.44/2,935.20 = 1,228.20/x
  3. Step 3: Cross multiply
    1,960.44x = 2,935.20 × 1,228.20
  4. Step 4: Simplify right side
    1,960.44x = 3,605,012.64
  5. Step 5: Solve for x
    x = 3,605,012.64/1,960.44
  6. Step 6: Final answer
    x = 1,838.88

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1.5x scale

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.