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Finding the Fourth Proportional to 2,488.62, 3,732.53 and 756.84

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Solution

The fourth proportional to 2,488.62, 3,732.53 and 756.84 is: 1,135.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,488.62 : 3,732.53 = 756.84 : x
  2. Step 2: Convert to fraction form
    2,488.62/3,732.53 = 756.84/x
  3. Step 3: Cross multiply
    2,488.62x = 3,732.53 × 756.84
  4. Step 4: Simplify right side
    2,488.62x = 2,824,942.48
  5. Step 5: Solve for x
    x = 2,824,942.48/2,488.62
  6. Step 6: Final answer
    x = 1,135.14

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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.