Home / 2,939.86-4,409.79-1,400.50

Finding the Fourth Proportional to 2,939.86, 4,409.79 and 1,400.50

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Solution

The fourth proportional to 2,939.86, 4,409.79 and 1,400.50 is: 2,100.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.86 : 4,409.79 = 1,400.50 : x
  2. Step 2: Convert to fraction form
    2,939.86/4,409.79 = 1,400.50/x
  3. Step 3: Cross multiply
    2,939.86x = 4,409.79 × 1,400.50
  4. Step 4: Simplify right side
    2,939.86x = 6,175,910.90
  5. Step 5: Solve for x
    x = 6,175,910.90/2,939.86
  6. Step 6: Final answer
    x = 2,100.75

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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.