Home / 3,784.40-5,667-3,166.60

Finding the Fourth Proportional to 3,784.40, 5,667 and 3,166.60

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Solution

The fourth proportional to 3,784.40, 5,667 and 3,166.60 is: 4,741.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.40 : 5,667 = 3,166.60 : x
  2. Step 2: Convert to fraction form
    3,784.40/5,667 = 3,166.60/x
  3. Step 3: Cross multiply
    3,784.40x = 5,667 × 3,166.60
  4. Step 4: Simplify right side
    3,784.40x = 17,945,122.20
  5. Step 5: Solve for x
    x = 17,945,122.20/3,784.40
  6. Step 6: Final answer
    x = 4,741.87

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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.