Home / 3,977.55-5,972.70-3,162.60

Finding the Fourth Proportional to 3,977.55, 5,972.70 and 3,162.60

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Solution

The fourth proportional to 3,977.55, 5,972.70 and 3,162.60 is: 4,748.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.55 : 5,972.70 = 3,162.60 : x
  2. Step 2: Convert to fraction form
    3,977.55/5,972.70 = 3,162.60/x
  3. Step 3: Cross multiply
    3,977.55x = 5,972.70 × 3,162.60
  4. Step 4: Simplify right side
    3,977.55x = 18,889,261.02
  5. Step 5: Solve for x
    x = 18,889,261.02/3,977.55
  6. Step 6: Final answer
    x = 4,748.97

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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.