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Finding the Fourth Proportional to 3,762.50, 5,192.25 and 2,106.50

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Solution

The fourth proportional to 3,762.50, 5,192.25 and 2,106.50 is: 2,906.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,762.50 : 5,192.25 = 2,106.50 : x
  2. Step 2: Convert to fraction form
    3,762.50/5,192.25 = 2,106.50/x
  3. Step 3: Cross multiply
    3,762.50x = 5,192.25 × 2,106.50
  4. Step 4: Simplify right side
    3,762.50x = 10,937,474.63
  5. Step 5: Solve for x
    x = 10,937,474.63/3,762.50
  6. Step 6: Final answer
    x = 2,906.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.