Home / 7,610.81-11,411.66-3,163.12

Finding the Fourth Proportional to 7,610.81, 11,411.66 and 3,163.12

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Solution

The fourth proportional to 7,610.81, 11,411.66 and 3,163.12 is: 4,742.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,610.81 : 11,411.66 = 3,163.12 : x
  2. Step 2: Convert to fraction form
    7,610.81/11,411.66 = 3,163.12/x
  3. Step 3: Cross multiply
    7,610.81x = 11,411.66 × 3,163.12
  4. Step 4: Simplify right side
    7,610.81x = 36,096,429.36
  5. Step 5: Solve for x
    x = 36,096,429.36/7,610.81
  6. Step 6: Final answer
    x = 4,742.78

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1.5x scale

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.