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Finding the Fourth Proportional to 4,825, 7,237.50 and 1,747

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Solution

The fourth proportional to 4,825, 7,237.50 and 1,747 is: 2,620.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,825 : 7,237.50 = 1,747 : x
  2. Step 2: Convert to fraction form
    4,825/7,237.50 = 1,747/x
  3. Step 3: Cross multiply
    4,825x = 7,237.50 × 1,747
  4. Step 4: Simplify right side
    4,825x = 12,643,912.50
  5. Step 5: Solve for x
    x = 12,643,912.50/4,825
  6. Step 6: Final answer
    x = 2,620.50

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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.