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Finding the Fourth Proportional to 3,759.53, 5,641.06 and 1,679.34

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Solution

The fourth proportional to 3,759.53, 5,641.06 and 1,679.34 is: 2,519.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.53 : 5,641.06 = 1,679.34 : x
  2. Step 2: Convert to fraction form
    3,759.53/5,641.06 = 1,679.34/x
  3. Step 3: Cross multiply
    3,759.53x = 5,641.06 × 1,679.34
  4. Step 4: Simplify right side
    3,759.53x = 9,473,257.70
  5. Step 5: Solve for x
    x = 9,473,257.70/3,759.53
  6. Step 6: Final answer
    x = 2,519.80

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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.