Home / 2,731.11-4,097.81-1,171.45

Finding the Fourth Proportional to 2,731.11, 4,097.81 and 1,171.45

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Solution

The fourth proportional to 2,731.11, 4,097.81 and 1,171.45 is: 1,757.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.11 : 4,097.81 = 1,171.45 : x
  2. Step 2: Convert to fraction form
    2,731.11/4,097.81 = 1,171.45/x
  3. Step 3: Cross multiply
    2,731.11x = 4,097.81 × 1,171.45
  4. Step 4: Simplify right side
    2,731.11x = 4,800,379.52
  5. Step 5: Solve for x
    x = 4,800,379.52/2,731.11
  6. Step 6: Final answer
    x = 1,757.67

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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.