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Finding the Fourth Proportional to 3,361.54, 5,040.08 and 1,605.46

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Solution

The fourth proportional to 3,361.54, 5,040.08 and 1,605.46 is: 2,407.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,361.54 : 5,040.08 = 1,605.46 : x
  2. Step 2: Convert to fraction form
    3,361.54/5,040.08 = 1,605.46/x
  3. Step 3: Cross multiply
    3,361.54x = 5,040.08 × 1,605.46
  4. Step 4: Simplify right side
    3,361.54x = 8,091,646.84
  5. Step 5: Solve for x
    x = 8,091,646.84/3,361.54
  6. Step 6: Final answer
    x = 2,407.12

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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.