Home / 2,662.11-3,985.34-1,971.86

Finding the Fourth Proportional to 2,662.11, 3,985.34 and 1,971.86

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Solution

The fourth proportional to 2,662.11, 3,985.34 and 1,971.86 is: 2,951.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,662.11 : 3,985.34 = 1,971.86 : x
  2. Step 2: Convert to fraction form
    2,662.11/3,985.34 = 1,971.86/x
  3. Step 3: Cross multiply
    2,662.11x = 3,985.34 × 1,971.86
  4. Step 4: Simplify right side
    2,662.11x = 7,858,502.75
  5. Step 5: Solve for x
    x = 7,858,502.75/2,662.11
  6. Step 6: Final answer
    x = 2,951.98

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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.