Home / 3,065.50-4,231.35-1,961.50

Finding the Fourth Proportional to 3,065.50, 4,231.35 and 1,961.50

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Solution

The fourth proportional to 3,065.50, 4,231.35 and 1,961.50 is: 2,707.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,065.50 : 4,231.35 = 1,961.50 : x
  2. Step 2: Convert to fraction form
    3,065.50/4,231.35 = 1,961.50/x
  3. Step 3: Cross multiply
    3,065.50x = 4,231.35 × 1,961.50
  4. Step 4: Simplify right side
    3,065.50x = 8,299,793.03
  5. Step 5: Solve for x
    x = 8,299,793.03/3,065.50
  6. Step 6: Final answer
    x = 2,707.48

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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.