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Finding the Fourth Proportional to 3,699, 5,100.84 and 2,440.80

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Solution

The fourth proportional to 3,699, 5,100.84 and 2,440.80 is: 3,365.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,699 : 5,100.84 = 2,440.80 : x
  2. Step 2: Convert to fraction form
    3,699/5,100.84 = 2,440.80/x
  3. Step 3: Cross multiply
    3,699x = 5,100.84 × 2,440.80
  4. Step 4: Simplify right side
    3,699x = 12,450,130.27
  5. Step 5: Solve for x
    x = 12,450,130.27/3,699
  6. Step 6: Final answer
    x = 3,365.81

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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.