Home / 3,451.86-5,180.79-1,809.57

Finding the Fourth Proportional to 3,451.86, 5,180.79 and 1,809.57

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Solution

The fourth proportional to 3,451.86, 5,180.79 and 1,809.57 is: 2,715.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,451.86 : 5,180.79 = 1,809.57 : x
  2. Step 2: Convert to fraction form
    3,451.86/5,180.79 = 1,809.57/x
  3. Step 3: Cross multiply
    3,451.86x = 5,180.79 × 1,809.57
  4. Step 4: Simplify right side
    3,451.86x = 9,375,002.16
  5. Step 5: Solve for x
    x = 9,375,002.16/3,451.86
  6. Step 6: Final answer
    x = 2,715.93

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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.