Home / 3,112.29-4,666.08-1,879.41

Finding the Fourth Proportional to 3,112.29, 4,666.08 and 1,879.41

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Solution

The fourth proportional to 3,112.29, 4,666.08 and 1,879.41 is: 2,817.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,112.29 : 4,666.08 = 1,879.41 : x
  2. Step 2: Convert to fraction form
    3,112.29/4,666.08 = 1,879.41/x
  3. Step 3: Cross multiply
    3,112.29x = 4,666.08 × 1,879.41
  4. Step 4: Simplify right side
    3,112.29x = 8,769,477.41
  5. Step 5: Solve for x
    x = 8,769,477.41/3,112.29
  6. Step 6: Final answer
    x = 2,817.69

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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.