Home / 2,721.86-4,081.17-1,161.06

Finding the Fourth Proportional to 2,721.86, 4,081.17 and 1,161.06

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Solution

The fourth proportional to 2,721.86, 4,081.17 and 1,161.06 is: 1,740.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.86 : 4,081.17 = 1,161.06 : x
  2. Step 2: Convert to fraction form
    2,721.86/4,081.17 = 1,161.06/x
  3. Step 3: Cross multiply
    2,721.86x = 4,081.17 × 1,161.06
  4. Step 4: Simplify right side
    2,721.86x = 4,738,483.24
  5. Step 5: Solve for x
    x = 4,738,483.24/2,721.86
  6. Step 6: Final answer
    x = 1,740.90

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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.