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Finding the Fourth Proportional to 3,473.85, 5,208.47 and 1,914.60

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Solution

The fourth proportional to 3,473.85, 5,208.47 and 1,914.60 is: 2,870.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,473.85 : 5,208.47 = 1,914.60 : x
  2. Step 2: Convert to fraction form
    3,473.85/5,208.47 = 1,914.60/x
  3. Step 3: Cross multiply
    3,473.85x = 5,208.47 × 1,914.60
  4. Step 4: Simplify right side
    3,473.85x = 9,972,136.66
  5. Step 5: Solve for x
    x = 9,972,136.66/3,473.85
  6. Step 6: Final answer
    x = 2,870.63

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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.