Home / 3,110.56-4,287.76-2,761.12

Finding the Fourth Proportional to 3,110.56, 4,287.76 and 2,761.12

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Solution

The fourth proportional to 3,110.56, 4,287.76 and 2,761.12 is: 3,806.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.56 : 4,287.76 = 2,761.12 : x
  2. Step 2: Convert to fraction form
    3,110.56/4,287.76 = 2,761.12/x
  3. Step 3: Cross multiply
    3,110.56x = 4,287.76 × 2,761.12
  4. Step 4: Simplify right side
    3,110.56x = 11,839,019.89
  5. Step 5: Solve for x
    x = 11,839,019.89/3,110.56
  6. Step 6: Final answer
    x = 3,806.07

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1.5x scale

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.