Home / 3,759.45-5,635.74-1,449.21

Finding the Fourth Proportional to 3,759.45, 5,635.74 and 1,449.21

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Solution

The fourth proportional to 3,759.45, 5,635.74 and 1,449.21 is: 2,172.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.45 : 5,635.74 = 1,449.21 : x
  2. Step 2: Convert to fraction form
    3,759.45/5,635.74 = 1,449.21/x
  3. Step 3: Cross multiply
    3,759.45x = 5,635.74 × 1,449.21
  4. Step 4: Simplify right side
    3,759.45x = 8,167,363.52
  5. Step 5: Solve for x
    x = 8,167,363.52/3,759.45
  6. Step 6: Final answer
    x = 2,172.49

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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.