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Finding the Fourth Proportional to 3,539.77, 5,310.24 and 1,074.49

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Solution

The fourth proportional to 3,539.77, 5,310.24 and 1,074.49 is: 1,611.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,539.77 : 5,310.24 = 1,074.49 : x
  2. Step 2: Convert to fraction form
    3,539.77/5,310.24 = 1,074.49/x
  3. Step 3: Cross multiply
    3,539.77x = 5,310.24 × 1,074.49
  4. Step 4: Simplify right side
    3,539.77x = 5,705,799.78
  5. Step 5: Solve for x
    x = 5,705,799.78/3,539.77
  6. Step 6: Final answer
    x = 1,611.91

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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.