Home / 3,188.89-4,400.69-1,772.61

Finding the Fourth Proportional to 3,188.89, 4,400.69 and 1,772.61

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Solution

The fourth proportional to 3,188.89, 4,400.69 and 1,772.61 is: 2,446.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.89 : 4,400.69 = 1,772.61 : x
  2. Step 2: Convert to fraction form
    3,188.89/4,400.69 = 1,772.61/x
  3. Step 3: Cross multiply
    3,188.89x = 4,400.69 × 1,772.61
  4. Step 4: Simplify right side
    3,188.89x = 7,800,707.10
  5. Step 5: Solve for x
    x = 7,800,707.10/3,188.89
  6. Step 6: Final answer
    x = 2,446.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.