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Finding the Fourth Proportional to 2,488.75, 3,733.36 and 733.76

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Solution

The fourth proportional to 2,488.75, 3,733.36 and 733.76 is: 1,100.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,488.75 : 3,733.36 = 733.76 : x
  2. Step 2: Convert to fraction form
    2,488.75/3,733.36 = 733.76/x
  3. Step 3: Cross multiply
    2,488.75x = 3,733.36 × 733.76
  4. Step 4: Simplify right side
    2,488.75x = 2,739,369.73
  5. Step 5: Solve for x
    x = 2,739,369.73/2,488.75
  6. Step 6: Final answer
    x = 1,100.70

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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.