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Finding the Fourth Proportional to 2,964.28, 4,446.90 and 1,425.28

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Solution

The fourth proportional to 2,964.28, 4,446.90 and 1,425.28 is: 2,138.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,964.28 : 4,446.90 = 1,425.28 : x
  2. Step 2: Convert to fraction form
    2,964.28/4,446.90 = 1,425.28/x
  3. Step 3: Cross multiply
    2,964.28x = 4,446.90 × 1,425.28
  4. Step 4: Simplify right side
    2,964.28x = 6,338,077.63
  5. Step 5: Solve for x
    x = 6,338,077.63/2,964.28
  6. Step 6: Final answer
    x = 2,138.15

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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.