Home / 2,731.29-4,095.90-1,171.43

Finding the Fourth Proportional to 2,731.29, 4,095.90 and 1,171.43

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Solution

The fourth proportional to 2,731.29, 4,095.90 and 1,171.43 is: 1,756.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.29 : 4,095.90 = 1,171.43 : x
  2. Step 2: Convert to fraction form
    2,731.29/4,095.90 = 1,171.43/x
  3. Step 3: Cross multiply
    2,731.29x = 4,095.90 × 1,171.43
  4. Step 4: Simplify right side
    2,731.29x = 4,798,039.66
  5. Step 5: Solve for x
    x = 4,798,039.66/2,731.29
  6. Step 6: Final answer
    x = 1,756.69

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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.