Home / 3,759.96-5,631.72-2,115.60

Finding the Fourth Proportional to 3,759.96, 5,631.72 and 2,115.60

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Solution

The fourth proportional to 3,759.96, 5,631.72 and 2,115.60 is: 3,168.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,759.96 : 5,631.72 = 2,115.60 : x
  2. Step 2: Convert to fraction form
    3,759.96/5,631.72 = 2,115.60/x
  3. Step 3: Cross multiply
    3,759.96x = 5,631.72 × 2,115.60
  4. Step 4: Simplify right side
    3,759.96x = 11,914,466.83
  5. Step 5: Solve for x
    x = 11,914,466.83/3,759.96
  6. Step 6: Final answer
    x = 3,168.77

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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.