Home / 3,161.75-4,363.40-1,764.50

Finding the Fourth Proportional to 3,161.75, 4,363.40 and 1,764.50

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Solution

The fourth proportional to 3,161.75, 4,363.40 and 1,764.50 is: 2,435.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161.75 : 4,363.40 = 1,764.50 : x
  2. Step 2: Convert to fraction form
    3,161.75/4,363.40 = 1,764.50/x
  3. Step 3: Cross multiply
    3,161.75x = 4,363.40 × 1,764.50
  4. Step 4: Simplify right side
    3,161.75x = 7,699,201.89
  5. Step 5: Solve for x
    x = 7,699,201.89/3,161.75
  6. Step 6: Final answer
    x = 2,435.11

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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.