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Finding the Fourth Proportional to 3,453.04, 5,181 and 1,810.64

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Solution

The fourth proportional to 3,453.04, 5,181 and 1,810.64 is: 2,716.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,453.04 : 5,181 = 1,810.64 : x
  2. Step 2: Convert to fraction form
    3,453.04/5,181 = 1,810.64/x
  3. Step 3: Cross multiply
    3,453.04x = 5,181 × 1,810.64
  4. Step 4: Simplify right side
    3,453.04x = 9,380,925.84
  5. Step 5: Solve for x
    x = 9,380,925.84/3,453.04
  6. Step 6: Final answer
    x = 2,716.72

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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.