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Finding the Fourth Proportional to 3,378.55, 5,069.29 and 1,816.73

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Solution

The fourth proportional to 3,378.55, 5,069.29 and 1,816.73 is: 2,725.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.55 : 5,069.29 = 1,816.73 : x
  2. Step 2: Convert to fraction form
    3,378.55/5,069.29 = 1,816.73/x
  3. Step 3: Cross multiply
    3,378.55x = 5,069.29 × 1,816.73
  4. Step 4: Simplify right side
    3,378.55x = 9,209,531.22
  5. Step 5: Solve for x
    x = 9,209,531.22/3,378.55
  6. Step 6: Final answer
    x = 2,725.88

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1.5x scale

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.