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Finding the Fourth Proportional to 4,757.63, 7,136.46 and 1,679.63

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Solution

The fourth proportional to 4,757.63, 7,136.46 and 1,679.63 is: 2,519.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,757.63 : 7,136.46 = 1,679.63 : x
  2. Step 2: Convert to fraction form
    4,757.63/7,136.46 = 1,679.63/x
  3. Step 3: Cross multiply
    4,757.63x = 7,136.46 × 1,679.63
  4. Step 4: Simplify right side
    4,757.63x = 11,986,576.63
  5. Step 5: Solve for x
    x = 11,986,576.63/4,757.63
  6. Step 6: Final answer
    x = 2,519.45

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Similar ratio
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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.